AIX Command Crib Sheet

OS LEVEL : AIX
DATE     : 29/01/2001
VERSION  : 1.8

>> Latest version can be found at  http://www.mort.level5.net/johnr/howto/aix.txt <<

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                                 MISCELLENEOUS
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http://www.rs6000.ibm.com/cgi-bin/ds_form        Web based man pages

oslevel                       Returns operating system level

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

instfix -ik (fix number eg IX66617)     Checks id fix is installed
instfix -ik 4330-02_AIX_ML

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
uuencode 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

alog -o -t boot       View the boot log

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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                                TERMINALS
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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
 

Create ttys on ports 0 to 7 on adapter sa2 :-

for i in 0 1 2 3 4 5 6 7
do
  mkdev -c tty1 -t tty -s rs232 -p sa2 -w$i -a login=enable -a term=vt100
done

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

chdev -l (device name) -a hostname=(hostname)    Changes hostname permanently
chdev -l inet0 -a hostname=thomas

ifconfig (device name)              Displays network card settings
ifconfig (device name) 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

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 (name or ipaddress)           Same as traceroute except repeats.

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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
------

mkszfile -f                Creates /image.data file (4.x onwards)
mkszfile -X                Creates /fs.size file    (3.x)

mksysb (device eg /dev/rmt0)

CPIO ARCHIVE
------------

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

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

CPIO RESTORE
------------

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

TAR ARCHIVE
-----------

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

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

TAR RESTORE
-----------

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

AIX ARCHIVE
-----------

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

AIX RESTORE
-----------

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
 

BACKUPS ACROSS A NETWORK
------------------------

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 -icv | dd ibs=32k" \
| dd ibs=32k obs=64k of=/dev/rmt0
 

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                        Copying diskettes and tape
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COPYING DISKETTES
-----------------

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

COPYING TAPES
-------------

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 crontrol 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

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.

Power Management (PCI machines)
-------------------------------

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 = no        1 = yes

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)

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.

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.

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)
-----------------------

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

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.

Volume Groups (VG's)
--------------------

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.

mkvg -y(vg) -s(PP size) (pv)    Create a volume group
mkvg -y datavg -s 4 hdisk1

reducevg -d (vg) (pv)   Removes a volume group
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.
 
extendvg (vg) (new pv)        Adds another PV into a VG.

exportvg (vg)                 Exports the volume group eg deletes it!

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.

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.
 

Logical Volumes (LV's)
----------------------

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

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

chlv -n (new lv) (old lv)                       Rename a logical volume
extendlv (lv) (extra No of PP's)                Increase the size of an LV
rmlv (lv)                                       Remove a logical volume

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

File Systems (FS's)
-------------------

lsfs            Lists all filesystems
lsfs -q (fs)    Lists the file system details

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.

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.

chfs -A yes (fs)                 Change file system to Auto mount in
                                 /etc/filesystems
chfs -a size=(new fs size)(fs)   Change file system size

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.

Mirroring
---------

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.

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                        BOOT LOGICAL VOLUME (BLV)
--------------------------------------------------------------------------------

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.

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                                SYSTEM DUMP
--------------------------------------------------------------------------------

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.

(MCA machine can also dump if key is in service position and the reset
 button is pressed)

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

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                                PAGING SPACE (PS's)
--------------------------------------------------------------------------------

lsps -a                        Lists out all paging space
lsps -s                        Displays total paging and total useage
lsps (ps)

mkps -s(No of 4M blocks) -n -a (vg)
mkps -s(No of 4M blocks) -n -a (vg) (pv)
-n = don't activate/swapon now                -a = activate/swapon at reboot

chps -a n (ps)                       Turns off paging space.
chps -s(No of 4M blocks) (ps)        Increases paging space.

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.

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                                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.

at (now + 2 minutes, 13:05, etc) {return}        Schedule a job using at
Command or schell script {return}
{CTRL D}

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.

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                                SECURITY
--------------------------------------------------------------------------------

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

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                                USERS
--------------------------------------------------------------------------------

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.

lslicense                    Displays number of current user licensese
chlicense -u (number)        Changes the number of user licenses

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

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

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                             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.

--------------------------------------------------------------------------------
                             ERROR LOGGING
--------------------------------------------------------------------------------

/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.

--------------------------------------------------------------------------------
                      PERFORMANCE MONITORING
--------------------------------------------------------------------------------

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

--------------------------------------------------------------------------------
                                      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
kill -l (sendmail PID)

--------------------------------------------------------------------------------
                               SP / PSSP
--------------------------------------------------------------------------------

dsh (command)                Runs the command on all the nodes

Efence                       Diplays which node are currently fenced
Efence (node number)         Fences the node

Eunfence (node number)       Unfences the node

Estart                       Starts the switch

spmon -q                 Starts SP monitor in gui
spmon -d -G              Diag info, lists LED and switch info for all nodes
spmon -L frame1/node3    Displays LED for node 3 in frame 1

spmon -p off frame1/node3    Powers off the node
spmon -p on frame1/node3     Powers on the node

spled                        Diplays all the nodes LED's in a updating gui

s1term -w (frame number) (node number)  Opens serial terminal (read and write)
s1term (frame number) (node number)     Opens serial terminal (read only)

Example :-

s1term 1 1      Opens a serial terminal to console port on frame 1 node 1
                which is read only. When rebooting a node use read only.

splstdata -e    Lists site environment database information
          -d    Displays df command from each node
          -n    Lists node configuration
          -h    Diplays lscfg command from each node
          -s    Lists switch node information
          -b    Lists boot/installation information
          -a    Lists LAN database information
          -i    Displays netstat -in command from each node


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