AIX QuickSheet

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                                 MISCELLENEOUS

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compress -c file.txt > file.Z           Create a compressed file.

uuencode (infile) (extract-file-name) > (output file)

Converts a binary file to an ASCII file for transfer by modem or email

uudecode (encoded file)

Extracts a binary file from encoded file and calls it the extract-file-name 

examples :-

uuencode maymap maymap > maymap.enc

uudecode maymap.enc

od -c /tmp            Displays contents of the /tmp directory file

ls -i                 Lists files with their inode numbers

echo *                Lists files, can be used if ls is corrupt/missing

chtz (timezone eg GMT0BST)        Changes the timezone in /etc/environment file

chlang (language eg En_GB)        Changes the language in /etc/environment file

ar -v -t (archive file)           List contents of an archive

ar -v -x (archive file)           Extracts the archive

ar -v -t /usr/lib/libC-r.a        Lists contents of the libC_r.a library

find /source -print | cpio -pdm /target

Copying directories using cpio, creates /target/source directory.

dump -nTv (binary executable)     Displays the contents of an executable file

dump -c        Displays string information

dump -o        Displays object file headers

dump -l        Displays line numbers

dump -s        Displays the text section

snap -ao /dev/rmt0         Create a snapshot onto tape

snap -ad (directory)       Create a snapshot into a named directory other

                           than the default (/tmp/ibmsupt)

/usr/dt/bin/dtconfig -d    Disables desktop logins

/usr/dt/bin/dtconfig -e    Enables desktop logins

/var/dt/Xpid               PID of the dtlogin process

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                        LICENSES / SOFTWARE INSTALLATION

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lslicense                    Displays number of current user licenses

chlicense -u (number)        Changes the number of user licenses

( ftp,rexec and rsh (without -i flag) do not need an AIX user license to be

  able to access the system. )

oslevel                       Returns operating system level

     5 . 3 . 3 . 0 <--------- Preventive Maintenance Level

     |   |   |

     |   |   +----------------Modification

     |   +--------------------Release

     +------------------------Version

oslevel -l 5.3.3.0            Displays all filesets that are "downlevel"

whence (program)              Returns full path of program

whereis (program)             Returms full path of program

what (program)                Displays identifying info from the executable

                              like version number, when compiled.

lslpp -L all                  list all installed software

lslpp -L (program set name)   Check if software installed

lslpp -f                      Lists filesets vs packages

lslpp -ha                     Lists installation history of filesets

lslpp -w /usr/bin/swapon      Lists the fileset that the file belongs to

lppchk -c                     Checks file checksums against SWVPD

lppchk -l                     Checks symbolic links against SWVPD

instfix -ik (fix number eg IX66617)     Checks id fix is installed

instfix -ik 5330-02_AIX_ML

instfix -i | grep ML                    Displays all ML's installed

instfix -k IX38794 -d /dev/cd0          Installs a fix from cdrom

/usr/sbin/install_assist                Smitty Installation Assistant

/usr/sys/inst.images/sys.bundles        Software bundle files

alt_disk_install -c hdisk1       Clones a running rootvg onto hdisk1

alt_disk_install -w              Wakes up alt vg

alt_disk_install -s              Sends alt vg to sleep !

alt_disk_install -x              Removes alt vg from disk

/usr/lpp/bosinst/blvset -d /dev/hdisk0 -p 5.3

Resets the pad string in the BLV to the correct AIX version. Needed if the

migration option is missing when installing.

installp -ad (device) (fileset) (level)     Install apply and commit fileset

installp -pad (device) (fileset) (level)    Preview install

installp -u (fileset)                       Remove fileset

installp -ld (device)                       List all software on device

example:-

installp -pad /dev/rmt0 X11.base 5.3.3.0

installp -C      Cleans up after a premature cancel or interrupted installation.

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                           TERMINALS / DISPLAYS

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/usr/share/lib/terminfo    Directory with all support terminal info files.

tty            Displays what the tty/pty number of the terminal is.

termdef        reports the termtype setup in smit for the tty port

               that termdef is run on.

chdev -l (device eg tty1) -a term=vt100     Sets tty to a vt100 terminal type

penable tty0      adds getty line into /etc/inittab for tty0 and starts getty

pdisable tty0     disables the getty line and disables getty

penable / pdisable -a option is for all

stty erase ^?     Set backspace key for vt100 terminals

stty erase ^H     Set backspace key for wyse50 terminals

lscons                                            Displays the console device

chcons -a login=enable (device eg /dev/tty1)      Changes the console device

lsdisp            Display adapter device information

chdisp            Change default display used by LFT subsystem

portmir -t /dev/tty0     Mirror current terminal onto /dev/tty0

portmir -o               Turns off port mirroring

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                                NETWORK

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host (ip or hostname)      Resolves a hostname / ip address

hostname                   Displays hostname

hostname (hostname)        Sets the hostname until next reboot

lsdev -Cc if               Lists all available/defined network interfaces

chdev -l (device name) -a hostname=(hostname)    Changes hostname permanently

chdev -l inet0 -a hostname=santosh

ifconfig (device name)              Displays network card settings

ifconfig (device name) up           Turns on network card

chdev -l (device name) -a state=up  Turns on network card

ifconfig (device name) down         Turns off network card

ifconfig (device name) detach       Removes the network card from the

                                    network interface list

ifconfig en0 inet 194.35.52.1 netmask 255.255.255.0 up

ifconfig lo0 alias 195.60.60.1      Create alias ip address for loopback

route (add/delete) (-net/-host) (destination) (gateway)

Adds or deletes routes to other networks or hosts, does not update

the ODM database and will be lost at reboot.

route add -net 194.60.89.0 194.60.90.4

chdev -l inet0 -a "net,-hopcount,1,-netmask,255.255.255.0,207.156.168.0,10.0.15.254"

                                                          (destination) ( gateway )

Adds route and adds entry into ODM, route survives a reboot,

route -rn                             Display route table

odmget -q "attribute=route" CuAt      Displays routes in the ODM.

lsattr -EHl inet0                  Displays routes set in ODM and hostname

odmget -q "name=inet0" CuAt        Displays routes set in ODM and hostname

refresh -s inetd           Refresh inetd after changes to inetd.conf

kill -1 (inetd PID)        Refresh inetd after changes to inted.conf

netstat -i                             Displays interface statistics

entstat -d (ethernet adapter eg en0)   Displays ethernet statistics

arp -a         Displays ip to mac address table from arp cache

no -a          Displays network options use -o to set individual options or

               -d to set individual options to default.

               no -o option=value (this value is reset at reboot)

               no -o "ipforwarding=1"

traceroute (name or ipaddress)        Displays all the hops from source to

                                      destination supplied.

ping -R (hostname or ipaddress)       Same as traceroute except repeats.

spray (hostname or ipaddress)         Send a stream of packets to a host

stopsrc -g tcpip            Stops all running TCP/IP daemons

/etc/tcp.clean              Stops all running TCP/IP daemons and removes all 

                            lock files

/etc/rc.tcpip               Start all TCP/IP daemons. 

                            Do not use startsrc -g tcpip as this will start             all TCP/IP daemons including routed & gated

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                                N.F.S.

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exportfs                        Lists all exported filesystems

exportfs -a                     Exports all fs's in /etc/exports file

exportfs -u (filesystem)        Un-exports a filesystem

mknfs                           Configures and starts NFS services

rmnfs                           Stops and un-configures NFS services

mknfsexp -d /directory          Creates an NFS export directory

mknfsmnt                        Creates an NFS mount directory

mount hostname:/filesystem /mount-point    Mount an NFS filesystem

nfso -a                                    Display NFS Options

nfso -o option=value                       Set an NFS Option

nfso -o nfs_use_reserved_port=1

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                                BACKUPS

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MKSYSB

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mkszfile -f                 Creates /image.data file 

mkszfile -X                 Creates /fs.size file    

mksysb -i (device of file)  Creates a mksysb image

mksysb does not save any raw data and will not backup a filesystem that

is not mounted.

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SAVEVG

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savevg -if (device or file) (vg)   Creates a savevg image

restvg -q -f (device or file)      Restore from a savevg image

                                   Ensure that the restvg command is run from /

mkvgdata (vg)                      Creates new vgname.data file

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CPIO ARCHIVE

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find (filesystem) -print | cpio -ocv > (filename or device)

eg find ./usr/ -print | cpio -ocv > /dev/rmt0

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CPIO RESTORE

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cpio -ict < (filename or device) | more        Lists archive

cpio -icdv < (filename or device)

cpio -icdv < (filename or device) ("files or directories to restore")

eg cpio -icdv < /dev/rmt0 "tcpip/*"             Restore directory and contents

   cpio -icdv < /dev/rmt0 "*resolve.conf"       Restore a named file

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TAR ARCHIVE

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tar -cvf (filename or device) ("files or directories to archive")

eg tar -cvf /dev/rmt0 "/usr/*"

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TAR RESTORE

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tar -tvf (filename or device)                        Lists archive

tar -xvf (filename or device)                        Restore all

tar -xvf (filename or device) ("files or directories to restore")

use -p option for restoring with orginal permissions

eg: tar -xvf /dev/rmt0 "tcpip"                   Restore directory and contents

   tar -xvf /dev/rmt0 "tcpip/resolve.conf"      Restore a named file

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AIX ARCHIVE

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find (filesystem) -print | backup -iqvf (filename or device)

Backup by filename.

eg find /usr/ -print | backup -iqvf /dev/rmt0

backup -(backup level 0 to 9) -f (filename or device) ("filesystem")

Backup by inode.

eg backup -0 -f /dev/rmt0 "/usr"        -u option updates /etc/dumpdates file

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AIX RESTORE

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restore -qTvf (filename or device)                        Lists archive

restore -qvxf (filename or device)                        Restores all

restore -qvxf (filename or device) ("files or directories to restore")

        (use -d for restore directories)

restore -qvxf /dev/rmt0.1 "./etc/passwd"     Restore /etc/passwd file

restore -s4 -qTvf /dev/rmt0.1                Lists contents of a mksysb tape

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BACKUPS ACROSS A NETWORK

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To run the backup on a local machine (cpio) and backup on the remote 

machine's (remhost) tape drive (/dev/rmt0)

find /data -print | cpio -ocv | dd obs=32k | rsh remhost \ 

"dd ibs=32k obs=64k of=/dev/rmt0"

To restore/read the backup (cpio) on the remote machine

dd ibs=64k if=/dev/rmt0 | cpio -icvt

To restore/read the backup (cpio) on the local machine from the remote

machine's (remhost) tape drive (/dev/rmt0)

rsh remhost "dd ibs=64k obs=32k if=/dev/rmt0" | dd ibs=32k \

| cpio -icvt

To run the backup (cpio) on a remote machine (remhost) and backup to

the local machines tape drive (/dev/rmt0)

rsh remhost "find /data -print | cpio -ocv | dd ibs=32k" \

| dd ibs=32k obs=64k of=/dev/rmt0

tar cBf - .  | rsh remhost "dd ibs=512 obs=512 of=/dev/rmt0"

Same as above but using tar instead of cpio.

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                        Copying diskettes and tape

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COPYING DISKETTES

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dd if=/dev/fd0 of=(filename) bs=36b

dd if=(filename) of=/dev/fd0 bs=36b conv=sync         or flcopy

COPYING TAPES

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dd if=/dev/rmt0 of=(filename)        

dd if=(filename) of=/dev/rmt0        or tcopy

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                                VI Commands

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:g/xxx/s//yyy/   global change where xxx is to be changed by yyy

sed 's(ctrl v ctrl m)g//g' old.filename > new.filename                

Strips out ^M characters from ascii files that have been transferred as binary.To enter control characters type ctrl v then ctrl ? where ? is whatever ctrl character you need.

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                                DEVICES

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lscfg                          lists all installed devices

lscfg -v                       lists all installed devices in detail

lscfg -vl (device name)        lists device details

bootinfo -b                    reports last device the system booted from

bootinfo -k                    reports keyswitch position

                               1=secure, 2=service, 3=normal

bootinfo -r                    reports amount of memory (/ by 1024)

bootinfo -s (disk device)      reports size of disk drive

bootinfo -T                    reports type of machine 

                               ie rspc,rs6ksmp,rspc or chrp

lsattr -El sys0 -a realmem     reports amount of useable memory

mknod (device) c (major no) (minor no)        Creates a /dev/ device file.

mknod /dev/null1 c 2 3

lsdev -C        lists all customised devices ie installed

lsdev -P        lists all pre-defined devices ie supported

lsdev -(C or P) -c (class) -t (type) -s (subtype)

chdev -l (device) -a (attribute)=(new value)      Change a device attribute

chdev -l sys0 -a maxuproc=80

lsattr -EH -l (device) -D         Lists the defaults in the pre-defined db

lsattr -EH -l sys0 -a modelname

rmdev -l (device)           Change device state from available to defined

rmdev -l (device) -d        Delete the device

rmdev -l (device) -SR       S stops device, R unconfigures child devices

lsresource -l (device)  Displays bus resource attributes of a device.

cfgmgr                  Configures devices

cfgmgr -i /dev/cd0      Configure devices and install drivers from /dev/cd0

                        if required

cfgmgr -S               Run in serial, used with a larger number of disks

cfgmgr -l scsi0         Configure devices on adapter scsi0 only

diag                    Run hardware diagnostic menu 

smitty diag             Run hardware diagnostic menu

( 7020-40P and 7248-43P machines cannot run diagnostics, use diagnostics

  in the SMS menus instead )

diag -d (device)        Run diagnostics against a device.

lsslot                  Displays all hot swap slots

lsslot -c pci           Lists all pci hot swap slots

lsslot -c pci -a        Lists all available pci hot swap slots

drslot                               Reconfgiures PCI hot-plug slots

drslot -i -c pci -s U0.1-P1-I3        Display a slot, flashes the LED next to

                                      the slot so that it can be identified.

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Power Management (PCI machines)

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pmctrl -a            Displays the Power Management state

rmdev -l pmc0        Unconfigure Power Management

mkdev -l pmc0        Configure Power Management

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                                TAPE DRIVES

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rmt0.x where x = A + B + C

A = density        0 = high      4 = low

B = retension      0 = no        2 = yes

C = rewind         0 = yes       1 = no

tctl -f (tape device) fsf (No)        Skips forward (No) tape markers

tctl -f (tape device) bsf (No)        Skips back (No) tape markers

tctl -f (tape device) rewind          Rewind the tape

tctl -f (tape device) offline         Eject the tape

tctl -f (tape device) status          Show status of tape drive

chdev -l rmt0 -a block_size=512        changes block size to 512 bytes

                                       (4mm = 1024, 8mm = variable but 

                                        1024 recommended)

dd if=/dev/rmt0 bs=128k count=1 | wc -c

Displays the block size of an unknow tape. Set block size to 0 first.

bootinfo -e             answer of 1 = machine can boot from a tape drive

                        answer of 0 = machine CANNOT boot from tape drive

diag -c -d (tape device)        Hardware reset a tape drive.

diag -c -d rmt0

tapechk (No of files)           Checks Number of files on tape.

< /dev/rmt0                     Rewinds the tape !!!

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                        PRINTERS / PRINT QUEUES

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splp (device)                   Displays/changes printer driver settings 

splp /dev/lp0

export $LPDEST="pqname"         Set default printer queue for login session 

lsvirprt                        Lists/changes virtual printer attributes.

lsallq                          Displays all queues

rmvirprt -q queuename -d queuedevice        Removes a virtual printer

qpri -#(job No) -a(new priority)            Change a queue job priority.

qhld -#(job No)                Put a hold on hold

qhld -r #(job No)              Release a held job

qchk -A                        Status of jobs in queues

lpstat                                        

lpstat -p(queue)               Status of jobs in a named queue

qcan -x (job No)               Cancel a job from a queue

cancel (job No)                                

enq -U -P(queue)               Enable a queue

enable (queue)                                

enq -D -P(queue)               Disable a queue

disable (queue)                                

qmov -m(new queue) -#(job No)  Move a job to another queue

startsrc -s qdaemon            Start qdaemon sub-system

lssrc -s qdaemon               List status of qdaemon sub-system

stop -s qdaemon                Stop qdaemon sub-system

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                                FILE SYSTEMS

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Physical Volumes (PV's)

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lspv                        Lists all physical volumes (hard disks)

lspv (pv)                   Lists the physical volume details

lspv -l (pv)                Lists the logical volumes on the physical volume

lspv -p (pv)                Lists the physical partition usage for that PV

lspv -M (pv)                Lists the PP allocation table for that PV.

If the PV state is "missing" but the disk is okay, use "varyonvg vg" to change the state of the PV to "active".

chdev -l (pv) -a pv=yes     Makes a new hdisk a pysical volume.

chpv -v r (pv)              Removes a disk from the system.

chpv -v a (pv)              Adds the removed disk back into the system.

chpv -a y (pv)              Changes pv allocatable state to YES

chpv -a n (pv)              Changes pv allocatable state to NO

migratepv (old pv) (new pv)     Moves all LV's from one PV to another PV, both

                                PV's must be in the same volume group.

Migratepv cannot migrate striped logical volumes, use cplv and rmlv.

replacepv (old pv) (new pv)     

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Volume Groups (VG's)

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lsvg              Lists all volume groups

lsvg (vg)         Lists the volume group details

lsvg -l (vg)      Lists all logical volumes in the volume group

lsvg -p (vg)      Lists all physical volumes in the volume group

lsvg -o           Lists all varied on volume groups

varyonvg (vg)           Vary On a volume group

varyonvg -f (vg)        Forces the varyon process

varyonvg -s (vg)        Vary on a VG in maintenance mode. LV commands can be 

                        used on VG, but LV,s cannot be opened for I/O.

varyoffvg (vg)          Vary Off a volume group

synclvodm (vg)          Tries to resync VGDA, LV control blocks and ODM.

synclvodm -v (vg)       Rebuilds the LVCB.

(the vg needs to be varied on before running synclvodm)

mkvg -y(vg) -s(PP size) (pv)    Create a volume group

mkvg -y datavg -s 4 hdisk1

reducevg (vg) (pv)       Removes a volume group

reducevg -d (vg) (pv)    Removes a volume group and delete all LV's on the PV

reducevg (vg) (PVID)     Removes the PVID disk reference from the VGDA when a

                         disk has vanished without the reducevg (vg) (pv)

                         command being run first.

reducevg -df (vg) (pv)   Deletes all LV's from the VG and removes the VG

                         from the disk. If the last disk in the VG then

                         the VG is deleted.

extendvg (vg) (new pv)   Adds another PV into a VG.

exportvg (vg)            Exports the volume group, removes the VG entries and

                         removes all FS entries from /etc/filesystems but

                         leaves the mount points.

Note : Cannot export a VG if it has active paging space, turn off paging,

       reboot before exporting VG. Exporting removes entries from filesystems

       file but does not remove the mount points.

chvg -a y (vg)                  Auto Vary On a volume group at system start.

chvg -u (vg)                    Unlocks a locked volume group.

lqueryvg -Atp (pv)              Details volume group info for the hard disk.

importvg -y (vg name) (pv)      Import a volume group from a disk.

importvg (pv)                   Same as above but VG will be called vg00 etc.

chvg -Q (y/n) (vg name)         Turns on/off Quorum checking on a VG.

reorgvg (vg) (lv)        Reorganised a fragmented LV, must state an LV at the 

                         command line else the first LV in the VG is picked.

                         Does not reorg the PP's of striped LV's.

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Logical Volumes (LV's)

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lslv (lv)                   Lists the logical volume details

lslv -l (lv)                Lists the physical volume which the LV is on

lsattr -EHl (lv)            Displays more logical volume details

mklv (vg) (No of PP's) (pv Name optional)       Create a logical volume

mklv -y (lv) (PP's) (pv name optional)          Creates a named logical volume

( use -t jfs2 when creating an LV for a JFS2 filesystem )

chlv -n (new lv) (old lv)                       Rename a logical volume

chlv -x (number) (lv)                           Change max no of PP's

chlv -s n (lv)                                  Turns of strickness on the LV

extendlv (lv) (extra No of PP's)                Increase the size of an LV

rmlv (lv)                                       Remove a logical volume

cplv -v (vg to copy to) -y (new lv) (lv)        Copy an LV to a new LV

If copying a filesystem LV, umount the filesystem before copying, otherwise you will have to fsck the the new LV before the filesystem can be mounted.

If copying a striped LV to an LV that is already created, and the stripe 

size is different ( or not even striped ), then these new parameters are

maintained when the data is copied to the new LV.

cplv -e (new lv) (old lv)                     Copy to an existing LV

( new lv must have type as copy use chlv -t copy (new lv) to change )

mklv/extendlv -a = PP alocation policy

-am = middle   -ac = center   -ae = edge

-aie = inner edge    -aim = inner middle

migratepv -l (lv) (old pv) (new pv)

Move a logical volume between physical volumes. Both physical volumes

must be in the same volume group !

mklv -y (lv) -t jfslog (vg) (No of PP's) (pv Name optional)

Creates a JFSlog logical volume.

logform (/dev/lv)       Initialises an LV for use as an JFSlog

getlvcb -AT (lv)        Displays Logical Volume Control Block information

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File Systems (FS's)

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lsfs            Lists all filesystems

lsfs -q (fs)    Lists the file system details

lsjfs           Displays data about all filesystems in CSV style format

mount               Lists all the mounted filesystems

mount (fs or lv)    Mounts a named filesystem

mount -a            Mounts all filesystems

mount all 

mount -r -v cdrfs /dev/cd0 /cdrom        mounts cd0 drive over /cdrom

crfs -v jfs -d(lv) -m(mount point) -A yes

Will create a file system on the whole of the logical volume, adds entry into

/etc/filesystems and will create mount point directory if it does not exist. 

( use -v jfs2 for JFS2 filesystems )

crfs -v jfs -g(vg) -m(mount point) -a size=(size of fs) -A yes

Will create a logical volume on the volume group and create the file system on the logical volume. All at the size stated. Will add entry into 

/etc/filesystems and will create the mount point directory if it does not exist.

Use attribute "-a log=/dev/log01" to specify a jfslog devices   

Use attrubute "-a bf=true" for a large file enabled filesystem           

chfs -A yes (fs)                 Change file system to Auto mount in 

                                 /etc/filesystems

chfs -a size=(new fs size)(fs)   Change file system size

chfs -m (new-mount-point) (fs)   Change the file system mount point.

rmfs (fs)            Removes the file system and will also remove the

                     LV if there are no onther file systems on it.

defrag -q (fs)       Reports the fragment status of the file system.

defragfs -r (fs)     Runs in report only defrag mode (no action).

defragfs (fs)        Defragments a file system.

fsck (fs)            Verify a file system, the file system must be unmounted!

fsck (-y or -n) (fs) Pre-answer questions either yes or no !

fsck -p (fs)         Will restore primary superblock from backup copy if the

                     superblock is corrupt.

              ( or dd count=1 bs=4k skip=31 seek=1 if=/dev/lv00 of=/dev/lv00 )

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Mirroring

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mklv -y (lv) -c(copies 2 or 3) (vg) (No of PP's) (PV Name optional)

Creates a mirrored named logical volume.

mklvcopy -s n (lv) (copies 2 or 3) (pv)

Creates a copy of a logical volume onto another physical volume. The physical

volume MUST be in the same volume group as the orginal logical volume !

rmlvcopy (lv) (copies 1 or 2)             Removes logical volume copies.

rmlvcopy (lv) (copies 1 or 2) (pv)        From this pv only!

syncvg -p (pv)                            Synchronize logical partion copies

syncvg -l (lv)

syncvg -v (vg)

mirrorvg (vg) (pv)                

Mirrors the all the logical volumes in a volume group onto a new physical

volume. New physical volume must already be part of the volume group.

chfs -a splitcopy=/backup -a copy=2 /data1

Splits off a copy of a 3 way mirror and mount read only for use as an

offline backup.

-----------------------------------------------------------------------------

                   BOOT LOGICAL VOLUME (BLV) / PROCESSORS / KERNEL

-----------------------------------------------------------------------------

NOTE: Mirroring does not work with the BLV as it is not a true logical volume,bosboot must be run against the other disk after mirroring the rootvg.

bootlist -m (normal or service) -o                       displays bootlist

bootlist -m (normal or service) (list of devices)        change bootlist

bootinfo -b                  Identifies the bootable disk

bootinfo -t                  Specifies type of boot 

bosboot -a -d (/dev/pv)      Creates a complete boot image on a physical volume.

mkboot -c -d (/dev/pv)       Zero's out the boot records on the physical volume.

savebase -d (/dev/pv)        Saves customised ODM info onto the boot device.

lslv -m hd5                  Find out which disk the BLV is on.

bootinfo -y                  Displays which kernel can be used, 32 or 64 bit

genkex                       Reports all loaded kernel extensions.

lsdev -Cc processor          Lists all processors

lsattr -EHl proc0            Displays attributes of processor 0. AIX 5.1L will

                             display processor clock frequency.

-----------------------------------------------------------------------------

                                SYSTEM DUMP

-----------------------------------------------------------------------------

NOTE: Primary dump device must be in the rootvg

 Secondary dump device can be outside rootvg unless it is a paging device.

sysdumpdev -l        Lists current dump destination.

sysdumpdev -e        Estimates dumpsize of the current system in bytes.

sysdumpdev -L        Displays information about the previous dump.

sysdumpstart -p      Starts a dump and writes to the primary dump device.

sysdumpstart -s      Starts a dump and writes to the secondary dump device.

sysdumpdev -p (dump device) -P        Sets the default dump device, permanently

Analyse dump file :-

echo "stat\n status\n t -m" | crash /var/adm/ras/vmcore.0

snap -gfkD -o /dev/rmt0     Copy dump to tape to send to IBM support, uses tar.

-----------------------------------------------------------------------------

                                PAGING SPACE (PS's)

-----------------------------------------------------------------------------

lsps -a                        Lists out all paging space

lsps -s                        Displays total paging and total useage

lsps (ps)                

swappon /dev/ps                Activates a paging device eg /dev/paging00

swappoff /dev/ps               Deactivates a paging device ( AIX 5.x only )

mkps -s(No of PP's) -n -a (vg)

mkps -s(No of PP's) -n -a (vg) (pv)

-n = don't activate/swapon now                -a = activate/swapon at reboot

mklv -b n -t paging -y hd6 (vg) (No of PP's) (pv)

Creates paging space using the mklv command.

chps -a n (ps)                  Turns off paging space.

chps -s(No of PP's) (ps)        Increases paging space.

chps -d(No of PP's) (ps)        Decreases paging space ( AIX 5.x only )

chlv -n (new name) (old name)        Change paging space name

rmps (ps)               Remove paging space. PS must have been turned off 

                        and then the system rebooted before it can be removed.

Note : Need to change the swapon entry in /sbin/rc.boot script if you are

       changing the default paging space from /dev/hd6. You also need to

       do a "bosboot -a -d /dev/hdiskx" before the reboot.

/etc/swapspaces               File that lists all paging space devices that are

                              activated/swapon during reboot.

-----------------------------------------------------------------------------

                                SCHEDULING

-----------------------------------------------------------------------------

crontab -l                        List out crontab entrys

crontab -e                        Edit crontab entrys

crontab -l > (filename)           Output crontab entrys to a file

crontab (filename)                Enter a crontab from a file

crontab -r                        Removes all crontab entrys

crontab -v                        Displays crontab submission time.

/var/adm/cron/cron.allow        File containing users allowed crontab use.

/var/adm/cron/cron.deny         File containing users denied crontab use.

/var/adm/cron/crontab           Directory containing users crontab entries.

/var/adm/cron/log               Cron log file.

at (now + 2 minutes, 13:05, etc) {return}        Schedule a job using at

Command or schell script {return}

{CTRL D}

echo "shutdown -Fr" | at now + 1 minute

at -l                                

atq                      Lists out jobs scheduled to run via at command

at -r (at job No)

atrm  (at job No)        Removes an at job scheduled to run.

/var/adm/cron/at.allow   File containing users allowed at use.

/var/adm/cron/at.deny    File containing users denied at use.

/var/adm/cron/atjobs     Directory containing users at entries.

-----------------------------------------------------------------------------

                                SECURITY

-----------------------------------------------------------------------------

nulladm /var/adm/wtmp      To recreate/clear down the wtmp file.

groups           Lists out the groups that the user is a member of

setgroups        Shows user and process groups

chmod abcd (filename)        Changes files/directory permissions

Where a is  (4 SUID) + (2 SGID)  + (1 SVTX)

      b is  (4 read) + (2 write) + (1 execute)  permissions for owner

      c is  (4 read) + (2 write) + (1 execute)  permissions for group

      d is  (4 read) + (2 write) + (1 execute)  permissions for others

-rwxrwxrwx   -rwxrwxrwx   -rwxrwxrwx

  |||             |||             |||

   -               -               -

   |               |               |

Owner           Group           Others

-rwSrwxrwx = SUID   -rwxrwSrwx = SGID   drwxrwxrwt = SVTX

chown (new owner) (filename)        Changes file/directory owners

chgrp (new group) (filename)        Changes file/directory groups

chown (new owner).(new group) (filename)        Do both !!!

umask                            Displays umask settings

umask abc                        Changes users umask settings

where ( 7 - a = new file read permissions)

      ( 7 - b = new file write permissions) 

      ( 7 - c = new file execute permissions)

eg umask 022 = new file permissions of 755 = read write and execute for owner   

                                             read ----- and execute for group

                                             read ----- and execute for other

mrgpwd > file.txt      Creates a standard password file in file.txt

passwd                 Change current user password

pwdadm (username)      Change a users password

pwdck -t ALL           Verifies the correctness of local authentication

lsgroup ALL                      Lists all groups on the system

mkgroup (new group)              Creates a group

chgroup (attribute) (group)      Change a group attribute

rmgroup (group)                  Removes a group

-----------------------------------------------------------------------------

                           USERS / ENVIRONMENT

-----------------------------------------------------------------------------

passwd -f                        Change current users gecos (user description)

passwd -s                        Change current users shell

chfn (username)                  Changes users gecos

chsh (username) (shell)          Changes users shell

env              Displays values of environment variables

printenv

id               Displays current user's uid and gid details

id (user)        Displays user uid and gid details

whoami           Displays current user details

who am i         (or who -m)        

who              Displays details of all users currently logged in.

w

who -b           Displays system reboot time

uptime           Displays number of users logged in, time since last

                 reboot, and the machine load averages.

lsuser ALL                              Lists all users details

lsuser (username)                       Lists details for user

lsuser -a(attribute) (username or ALL)  Lists user attributes

lsuser -a home ALL 

mkuser -a(attributes) (newuser)         Add a new user

chuser (attributes) (user)              Change a user

chuser login=false (user)               Lock a user account

rmuser -p (user)              Removes a user and all entries in security files

usrck -t ALL                  Checks all the user entires are okay.

fuser -u (logical volume)     Displays processes using the files in that LV

fuser -k /dev/lv02            Will send a kill signal to all processes using

                              /dev/lv02

lsattr -D -l sys0 -a maxuproc        Displays max number of processes per user

chdev -l sys0 -a maxuproc=(number)   Changes max number of processes per user

chlang (language)             Changes the language settings for system or user.

         En_GB   = PC850 code pages

         en_GB   = ISO8859 code pages (Great Britain)

           C     = posix

su - (user)      Switch to new user and change to the new users environment.

su (user)        Switch to new user, current environment is propated to the

                 new shell.

-----------------------------------------------------------------------------

                             REMOTE USERS

-----------------------------------------------------------------------------

ruser -a -f (user)       Adds entry into /etc/ftpusers file

ruser -a -p (host)       Adds entry into /etc/host.lpd file

ruser -a -r (host)       Adds entry into /etc/hosts.equiv file

ruser -d -f (user)       Deletes entry in /etc/ftpusers file

ruser -d -p (host)       Deletes entry in /etc/host.lpd file

ruser -d -r (host)       Deletes entry in /etc/hosts.equiv file

ruser -s -F              Shows all entries in /etc/ftpusers file

ruser -s -P              Shows all entries in /etc/host.lpd file

ruser -s -R              Shows all entries in /etc/hosts.equiv file

ruser -X -F              Deletes all entries in /etc/ftpusers file

ruser -X -P              Deletes all entries in /etc/host.lpd file

ruser -X -R              Deletes all entries in /etc/hosts.equiv file

-----------------------------------------------------------------------------

                                INITTAB

-----------------------------------------------------------------------------

telinit S                Switches to single user mode.

telinit 2                Switches to multi user mode.

telinit q                Re-examines /etc/inittab

lsitab -a                Lists all entries in inittab

lsitab (ident eg tty1)   Lists the tty1 entry in inittab 

mkitab ("details")       Creates a new inittab entry

chitab ("details")       Ammends an existing inittab entry

rmitab (ident eg tty1)   Removes an inittab entry.

chitab "tty1:2:respawn:/usr/bin/getty /dev/tty1"

-----------------------------------------------------------------------------

                                ODM

-----------------------------------------------------------------------------

odmget -q "name=lp1" CuDv |more     Gets lp1 info from pre-defined database.

odmget -q "name-lp1" CuAt |more     Gets lp1 info from customised database.

odmdelete -o CuAt -q "name=lp1"     Deletes lp1 info from customised db.

odmget -q "name=lp1" CuAt > lp1.CuAt     Export ODM info to text file.

odmadd lp1.CuAt                          Import ODM info from text file.

odmshow CuAt         Displays fields and record structures of CuAt

odmchange

odmdrop

-----------------------------------------------------------------------------

                        ERROR LOGGING / LOGS

-----------------------------------------------------------------------------

/usr/lib/errdemon -l         Displays errorlog attributes.

/usr/lib/errdemon            Starts error logging.

/usr/lib/errstop             Stops error logging.

errpt                        Displays summary errorlog report.

errpt -a                     Displays detailed errorlog report.

errpt -j (identifier)        Displays singe errorlog report.

Note : errorlog classes are H=Hardware S=Software O=Information V=Undetermined

errclear (days)              Deletes all error classes in the errorlog.

errclear -d (class) (days)   Deletes all error class entries in errlog.

Note : The errclear command will delete all entries older than the numbers of

       days specified in the days paramenter. To delete ALL entries used 0.

errlogger "message up to 230 chrs"  

Enters an operator notifaction message into the errorlog.

alog -L                      Lists all logs define in the alog db

alog -o -t (type)            Display contents of log (type)

alog -o -t boot

cat /tmp/boot.log | alot -q -t (type)    Copies contects of a file to a log

-----------------------------------------------------------------------------

                    PERFORMANCE MONITORING / TUNING

-----------------------------------------------------------------------------

vmstat (drive) (interval) (count)         Reports virtual memory statistics.

vmstat hdisk0 5 20

vmstat -s              Diplays number of paging events since system start.

vmstat -f              Diplays number of forks since system start.

vmstat -i              Diplays number of interupts by device since system start.

iostat (drive) (interval) (count)         Reports i/o and cpu statistics.

iostat hdisk0 5 20

iostat -d (drive) (interval) (count)      Limits report to drive statistics.

iostat -t (interval) (count)              Limits report to tty statistics.

sar -u -P ALL 10 10         Displays %usr %sys %wio %idle for all processors

/usr/samples/kernel/vmtune  Displays "Virtual Memory Manager" settings

-----------------------------------------------------------------------------

                                      DOS DISKETTES

-----------------------------------------------------------------------------

dosdir                    Reads directory listing of a diskette

dosdir (directory)        Reads directory listing of a named directory

dosread -D/dev/fd0 C41.TXT c41.txt        Gets C41.TXT from diskette drive fd0

dosread -D/dev/fd0 DIRECTORY/C41.TXT c41.txt  

(-D option can be dropped if using fd0)

doswrite -D/dev/fd0 (unixfile) (dosfile)        Writes a file to diskette

dosdel (dosfile)                                Deletes a dos file on diskette

dosformat                                       Formats the diskette

-----------------------------------------------------------------------------

                                      SENDMAIL

-----------------------------------------------------------------------------

sendmail -bi       Creates new aliase db from /etc/aliase file.

newaliases

sendmail -bp       Displays the contents of the mail queue

mailq

sendmail -q        Processe the sendmail queue NOW

sendmail -bt -d0.4 < /dev/null

Prints out sendmail version, compile defines and system information

refresh -s sendmail      Restart sendmail, will re-read /etc/sendmail.cf

kill -l (sendmail PID)

stopsrc -s sendmail                 Stops the sendmail daemon

startsrc -s sendmail "-bd -q30m"     Starts the sendmail daemon