SCO CRIB SHEET....
hwconfig -h
Displays the hardware configuration
swconfig
Displays the system contents database
hw
(5.0.4 and above) Display detailed hardware config.
fixmog -i
Checks all system files against file control database
isverify -I
Rebuild ISAM database after system restore, need when
the
following message is displayed :-
"Error: Incorrect SCO Runtime System installed@
/etc/conf/cf.d/configure Tune kernel
parameters
/etc/conf/cf.d/link_unix Relinks the
kernel
asktime Used
to set the time and date.
/usr/adm/ISL/iqm_file Contains serial number and
activation key.
od (filename)
Octal dump of a file
hd (filename)
Hexadecimal
dump of a file
custom Menu
for installing software
scoadmin
Administration menu (OSR5)
sysadmsh
Administration menu (3.2.4.2)
scologin disable Disables graphical SCO login
at startup (X)
scologin enables Enables graphical SCO login
at startup (X)
------------------------------------------------------------
TERMINALS
------------------------------------------------------------
ttylock (tty)
Locks a named terminal
ttyunlock (tty)
Unlocks a locked terminal
enable (tty)
Turns on terminals
disable (tty)
Turns off terminals
To setup a serial console, add SYSTTY=x into
/etc/default/boot.
(Where x is 0 is display adapter and 1 is comm 1
etc)
------------------------------------------------------------
NETWORK
------------------------------------------------------------
hostname
Displays hostname
hostname (hostname) Sets the hostname until next
reboot
tcp start
Starts TCP services
tcp stop
Stops TCP services
nfs start
Starts NFS services
nfs stop
Stops NFS services
netconfig
Menu for setting up network adapters
------------------------------------------------------------
BACKUPS
------------------------------------------------------------
CPIO ARCHIVE
------------
find (filesystem) -print | cpio -ocv > (filename or
device)
eg find ./usr/ -print | cpio -ocv >
/dev/rStp0
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/rStp0 "tcpip/*"
Restore directory and contents
cpio
-icdv < /dev/rStp0 "*resolve.conf" Restore a named
file
TAR ARCHIVE
-----------
tar -cvf (filename or device) ("files or directories to
archive")
eg tar -cvf /dev/rStp0 "/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
use -A option for suppressing absolute file pathes #djn
5_01
eg tar -xvf /dev/rStp0 "tcpip"
Restore directory and contents
tar -xvf
/dev/rStp0 "tcpip/resolve.conf" Restore a named
file
------------------------------------------------------------
TAPE DRIVES
------------------------------------------------------------
/dev/xct0
Cartridge tape controller
/dev/erct0
Error correcting cartridge tape
/dev/nrct0
No rewind cartridge tape
/dev/rct0
Cartridge tape
/dev/rStp0
SCSI tape
/dev/rctmini Mini catridge
tape
/dev/rft0
QIC40 floppy tape
Cartridge
rct0 nrct0 xct0
SCSI cartridge or DAT rStp0 nrStp0
xStp0
Mini cartridge
rctmini nrctmini xctmini
/dev/r
Rewinds on closing
/dev/nr No
rewind on closing
/dev/x
Control file used by the tape command, cannot be used for
data
tape reten (device) Retension the
tape
tape rewind (device) Rewind the
tape
tape erase (device) Erase the
tape
tape status (device) Is there a tape in the drive
?
tape unload (device) Eject a tape
tape getblk (device) Reads and reports the block
size of the tape
tape -a (new block size) setblk (device) Sets the block
size
If no device used the will use default in tape
/etc/defaults/tape
dtype (device)
Reports what type of
data is on the devices (cpio, tar etc)
------------------------------------------------------------
PRINT QUEUES
------------------------------------------------------------
lpstat -t
lpstat -a Will
display "text message"
reject (pqueue)
Stops requests being placed in the queue
accept (pqueue)
Enables requests to be placed in the queue
reject -r "text message" (pqueue)
disable (pqueue) Halts the queue, request
will still be accepted
enable (pqueue)
Enables the queue afte being halted
disable -r "text message" (pqueue)
/usr/lib/lpshut Stop
the print sheduler
/usr/lib/lpsched Start the print
sceduler
cancel (job id)
Cancel a job that is queuing
lp -i (job id) -H hold Hold
a job
lp -i (job id) -H resume Cancel the hold on a
job
lp -i (job id) -H immediate Promote a job within a
queue
lp -i (job id) -d(pqueue) Move a job between
queues
$LPDEST
Default queue variable
/etc/printcap
Config file for print queues
/usr/spool/lp
Contains local printers
/usr/spool/lpd
Contains remote printers
------------------------------------------------------------
HARD DRIVES
------------------------------------------------------------
dkinit
Displays non scsi disk details
scsibadblk
Scans for bad tracks on disk
badtrk As
as scsibadblk
fdisk
Divides a hard disk into partitions
fdisk -p
Displays partion information
fdisk -p -f (device) Displays partion information
for named device
fdisk -p -f /dev/rhd00
------------------------------------------------------------
FILE SYSTEMS
------------------------------------------------------------
HTFS
High Throughput filesystem
2
gig max file size
1
tera max file system size
1k
block size
Not
bootable
DTFS
Desktop filesystem
2
gig max file size
1
tera max file system size
512
byte to 4k block size
Not
bootable
EAFS
Extended Acerfile file system
2
gig max file size
2
gig max file system size
1k
block size
Bootable and default
AFS, S51K, XENIX <- Other bootable
filesystems
divvy
Divides disk partions into divisions for filesystems
divvy -N -P
Displays division information
divvy -N -P (device) Displays division
information for 2nd disk drive
divvy -N -P /dev/hd1a
fstyp (device eg /dev/root) Displays filesystem
type
/dev/root
Boot filesystem (/stand)
/dev/recover
/dev/root
Root filesystem (/)
/dev/swap
Swap space
fsck (device) Verify a file system, the
file system must be unmounted,
except the /dev/root filesystem, you must be in single
user
mode
(init 1) or have booted from boot/root.
fsck -o full (device) Forces a full
fsck.
fsck -y (device) Pre-answer questions either
yes or no !
fsck -bs (device) Will recreate
superblock
mkdev fs
Screen for Creating and deleting filesystems
mount
Lists all the mounted filesystems
mount (fs or device) Mounts a named
filesystem
mountall
Mounts all filesystems
mount -r -f ISO9660 -o lower /dev/cd0 /miscd # mounts a standard
cd
fuser -u (/mount point) Lists who is using the
filesystem
------------------------------------------------------------
SWAP SPACE
------------------------------------------------------------
swap -l
Lists swap space and useage.
------------------------------------------------------------
BOOTING
------------------------------------------------------------
kernel Will
display path and name of the kernel used to boot system
mount /dev/hd0root /mnt
Mounts root filesystem over /mnt when you
have booting from boot/root floppies.
mount /dev/boot /mnt/stand Mounts boot
filesystem.
Boot: hd(40)unix Boot floppy, load kernel
from hard drive.
Used when /boot not found error
Boot: fd(64)unix root=hd(40) swap=hd(41) Unix from floppy, mount
root
filesystems on hard disk.
Boot: unix.old Load
the previous version of the kernel
(Must be in /stand {/dev/boot} directory)
Boot: dir
Displays whats in /stand (/dev/boot)
Boot: bootos ? Lists
partitions
Boot: bootos 4 Boot
from a non-active partition
Boot: defbootstr btld=fd(61) link=alad325
Sdsk=alad(0,0,0,0)
btld Boot time loadable driver can be found at fd(61) b:
drive,
defaults to fd(60) a: if not present.
link Uses driver alad325 from device specified in btld,
driver
disks are unix filesystem disks.
Sdsk Device to use the boot time loadable driver with :-
alad
is for the controller,
0 is host adapter
0 is bus on the adapter
0 is drive scsi id
0 is LUN
------------------------------------------------------------
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.
/usr/lib/cron/cron.allow File
containing users allowed crontab use.
/usr/lib/cron/cron.deny
File containing users denied crontab use.
/usr/spool/cron/crontabs Directory containing users
crontabs
at (now + 2 minutes, 13:05, etc) {return} Schedule a job using
at
Command or schell script {return}
{CTRL D}
at -l
at -r (at job No)
/usr/lib/cron/at.allow File
containing users allowed at use.
/usr/lib/cron/at.deny File
containing users denied at use.
/usr/spool/cron/atjobs
Directory contains users at jobs
------------------------------------------------------------
SECURITY
------------------------------------------------------------
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
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
passwd
Change current user password
passwd -l (user) Lock a users
account
passwd -u (user) Unlock a users
account
goodpw Test
to see if a passwd is acceptable.
pwck
Checks /etc/passwd file for inconsistencies
grpck
Checks /etc/group file for inconsistencies
------------------------------------------------------------
USERS
------------------------------------------------------------
env
Displays values of environment variables
id
Displays current user's uid and gid details
id (user)
Displays user uid and gid details
who
Displays details of all users currently logged in.
w
quot (filesystem) Displays disk useage by
user
useradd
userdel
(Note does not remove home dir)
rmuser
userls -l (username)
usermod
groupls
Lists what groups you are in.
groupls (username)
groupls -a
Lists all groups
groupmod
groupadd
groupdel
rmgroup
passwd (username)
rmpasswd
unretire (username) To reactivate a retired
user
------------------------------------------------------------
INIT RUN LEVELS
------------------------------------------------------------
init (run level) Switches run
levels
0
Shutdown
1
Single user
2,3,4
Multiuser
6
Reboot
haltsys
reboot
shutdown -g(number) grace period before starting
shutdown
-y
answer y to all further questions
-i(number)
shutdown to run level
shutdown -y -g0 -i1 To shutdown to single user
mode
shutdown -y -g0 -i6 To shutdown and reboot
system.
who -b
Displays when the machine was last booted
who -r
Displays what the current run level is
------------------------------------------------------------
SERIAL PORTS
------------------------------------------------------------
com1 = /dev/tty1a (terminal/getty) or /dev/tty1A (dial out
modem)
com2 = /dev/tty2a (terminal/getty) or /dev/tty2A (dial out
modem)
enable /dev/tty1a Enables the getty on
/dev/tty1a
disable /dev/tty1a Disables the getty on
/dev/tty1a
(above edits both /etc/inittab and /etc/conf/init.d/sio
files)
/etc/inittab
/etc/gettydefs
/etc/conf/init.d/sio Contains the defaults for
the serial part of inittab.
Will recreate inittab from this when the environment
is rebuilt using link_unix.
------------------------------------------------------------
ERROR LOGGING
------------------------------------------------------------
/usr/adm/messages
------------------------------------------------------------
PERFORMANCE
------------------------------------------------------------
sar (delay) (repeats)
options :-
-r
Displays amount of free memory and free swap
-d Displays disk and tape
activity
-b
Displays buffer activity
-u
Displays cpu useage
swap -l
Displays swap details and useage
/etc/conf/cf.d/configure -x Displays kernel
parameters
sysdef
------------------------------------------------------------
FLOPPY DRIVES
------------------------------------------------------------
48ds9
360Kb 5.25
inch
96ds15
1.2Mb 5.25
inch
135ds9
720Kb 3.5
inch
135ds18
1.44Mb 3.5 inch
135ds36
2.88Mb 3.5
inch
| |
|
| | +------
sectors per track
| +-------- ds =
double sided
+----------
tracks per inch
/dev/rfd0135ds18 = floppy disk 0 3.5" 1.44Mb
format
Formats disk for use.
mkdev fs
Screen for creating root/boot disks or floppy filesystems
diskcp Disk
to disk copy
diskcp -f
Disk to disk copy with format first.
------------------------------------------------------------
DOS DISKETTES
------------------------------------------------------------
doscp
dosrm
dosdir List
dos directories in dos dir style
dosdir /dev/fd0 or dosdir a:
dosls List
dos directories in unix ls style
dosformat
Format a dos floppy
dosmkdir Create a dos
directory
dosrmdir
Remove a dos directory
doscat
dtox (in file) > (out file) Dos to unix ascii file
conversion
xtod (in file) > (out file) Unix to dos ascii file conversion