Useful AIX Commands in day to day activities
Below I have given you the consolidate AIX Commands. Hope it will really useful for AIXian.
DEVICES
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.
|
PHYSICAL
VOLUME
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 example: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
|
migratepv -l (lv) (old pv) (new pv)
|
Move a logical volume between physical
volumes.
|
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 FS on the default logical
volume on the volume group with the size stated. Will add entry into
/etc/filesystems.
|
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 the physical volume
|
syncvg -l (lv)
|
Synchronize logical partion copies
|
syncvg -v (vg)
|
Synchronize the volume group
|
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.
|
mirrorvg –S (vg) (pv)
|
Mirrors all the lvs in a volume group in
background. We can access the vg in the meanwhile.
|
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.
|
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.
|
Note :
|
|
(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
|
echo "stat\n status\n t -m" |
crash \ /var/adm/ras/vmcore.0
|
Analyse dump file
|
PAGING
SPACE (PS's)
lsps –a
|
Lists out all paging space
|
lsps –s
|
Displays total paging and total useage
|
lsps (ps)
|
Display the info about the paging space
|
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
swap off
|
swapon /dev/paging00
|
To swap on the paging space
|
swapoff /dev/paging00
|
To swap off the Paging space
|
/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/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.
|
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
|
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)
|
Displays details of the current user
|
who
|
Displays details of all users currently
logged in.
|
w
|
Displays details of all users currently
logged in.
|
who –b
|
Displays system reboot time
|
uptime
|
Displays number of users logged in, time
since last reboot, and the machine loadaverages.
|
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
|
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")
|
Edit the inittab entry
|
Ammends an existing inittab entry
|
|
• Example :
|
|
chitab
"tty1:2:respawn:/usr/bin/getty /dev/tty1"
|
|
rmitab (ident eg tty1).
|
Removes an inittab entry
|
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 1024
chrs"
|
Enters an operator notifaction message
into the errorlog.
|
PERFORMANCE
MONITORING
vmstat (drive) (interval) (count)
|
Reports virtual memory
statistics.example: 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.
|
• Example :
|
|
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
|
|
refresh -s sendmail
|
Prints out sendmail version, compile
defines and system information
|
kill -l (sendmail PID)
|
Restart sendmail
|
MISCELLENEOUS
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
|
compress -c file.txt > file.Z
|
Create a compressed file.
|
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
|
TERMINALS
tty
|
Displays what the tty/pty number of 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
|
for i in 0 1 2 3 4 5 6 7
|
Create ttys on ports 0 to 7 on adapter
sa2 :-
|
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
|
NETWORK
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
|
ifconfig (device name)
|
Displays network card settings
|
ifconfig (device name) up Turns on
network card
|
|
• Examples :
|
|
ifconfig en0 inet 194.35.52.1 netmask
255.255.255.0 up
|
|
ifconfig (device name) down
|
Turns off network card
|
ifconfig (device name) detach
|
Removes the network card from the
network interface list
|
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.
Example:
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
|
traceroute (name or ipaddress)
|
Displays all the hops from source to
destination supplied.
|
ping -R (name or ipaddress)
|
Same as traceroute except repeats.
|
N.F.S.
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
|
|
• Examples :
|
|
nfso -o nfs_use_reserved_port=1
|
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")
|
|
Restore
directory and contents
|
cpio -icdv < /dev/rmt0
"tcpip/*"
|
Restore a named file
|
cpio -icdv < /dev/rmt0
"*resolve.conf"
|
TAR ARCHIVE
tar -cvf (filename or device)
|
("files or directories to
archive") tar -cvf /dev/rmt0 "/usr/*"
|
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
|
examples:
|
|
• Restore directory and contents
|
tar -xvf /dev/rmt0 "tcpip"
|
• Restore a named file
|
tar -xvf /dev/rmt0
"tcpip/resolve.conf"
|
AIX ARCHIVE
find (filesystem) -print | backup -iqvf
(filename or device)
|
Backup by filename. ( -u option updates
/etc/dumpdates file )
|
Example :
|
find /usr/ -print | backup -iqvf
/dev/rmt0
|
backup -(backup level 0 to 9) -f
(filename or device) ("filesystem")
|
Example : backup -0 -f /dev/rmt0 "/usr
|
Backup by inode. ( -u option updates
/etc/dumpdates file )
|
"
|
AIX RESTORE
restore -qTvf (filename or device)
|
Lists archiv
|
restore -qvxf (filename or device)
|
Restores all
|
restore -qvxf (filename or device)
("files or directories to restore")
|
use -d for restore directories)
|
• Restore /etc/passwd file
|
restore -qvxf /dev/rmt0.1
"./etc/passwd"
|
• Lists contents of a mksysb tape
|
restore -s4 -qTvf /dev/rmt0.1
|
BACKUPS ACROSS A NETWORK
find /data -print | cpio -ocv | dd
obs=32k | rsh remhost "dd ibs=32k obs=64k of=/dev/rmt0"
|
To run the backup on a local machine
(cpio) and backup on the remote machine's (remhost) tape drive (/dev/rmt0)
|
dd ibs=64k if=/dev/rmt0 | cpio –icvt
|
To restore/read the backup (cpio) on the
remote machine
|
rsh remhost "dd ibs=64k obs=32k
if=/dev/rmt0" | dd ibs=32k | cpio –icvt
|
To restore/read the backup (cpio) on the
local machine from the remote machine's (remhost) tape drive (/dev/rmt0)
|
rsh remhost "find /data -print |
cpio -icv | dd ibs=32k" | dd ibs=32k obs=64k of=/dev/rmt0
|
To run the backup (cpio) on a remote
machine (remhost) and backup to the local machines tape drive (/dev/rmt0)
|
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 tcopy
|
Editor
editor Commands
:g/xxx/s//yyy/
|
VI global change where xxx is to be
changed by yyy ( ctrl V to enter any character)
|
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.
|
TAPE
DRIVES
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 !!!
|
PRINTERS /
PRINT QUEUES
splp (device)
|
Displays/changes printer driver settings
|
• example:
|
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
|
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
|
|
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)
|
|
examples :
|
|
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
|
