Few unix commands which might be usefull...
AIX Mailing list :

https://new-lists.princeton.edu/listserv/aix-l.html

Solaris : Disable root login from tty

vi /etc/default/login
#console=/dev/console -> console=/dev/console

Unarchive files

zcat ./archive.tar.Z | tar xvf -
gzcat ./archive.tar.gz | tar xvf -
gunzip inf_sign archive.tar.gz | tar xvf -

Solaris : Display current run level

who -r
run level S Jan 17 12:13 S 1 3
S is the current run level. 1 is the number of times at run level S since last reboot. 3 is the previous run level.

Find files belonging to a user and delete them

find / -user 1015 -print
find / -user 1015 -exec rm -f {} \;

Solaris : remote backup

rsh myremotehost mt -f /dev/rmt/0 rewind
rsh myremotehost mt -f /dev/rmt/0cn fsf 5 : cn means Compression No rewind. fsf 5 will go the the 5th backup
ufsrestore bivf 128 myremotehost:/dev/rmt/0 : will restore files from the tape in myremotehost to the current dir. Then we use some commands : add, extract and quit.

rsh between 2 hosts

if mycomputer needs to send rsh command to myserver with root user :
Log to myserver and perform the following tasks :
create /.rhosts and add hostname "mycomputer"
edit /etc/hosts and add hostname ip -> "mycomputer 111.222.333.444"

See which version of file we're using

which filename
/dir1/dir2/filename

AIX : Show tape drive config

lscfg -vl rmt0
mt -f /dev/rmt0 status

Sendmail : send a test message

sendmail -v username "minus sign"/dev/null

Display process info

Linux : ps -eo "%p %P %y %U %C %c %x %z" | sort +4 -r | more
Solaris : ps -A -o pid,fname,user,pcpu,rss,vsz,etime,ppid,comm,s
Solaris : ps -A -o pid=PID -o user=OWNER -o etime=STARTED -o s=STATE ....

AIX : Which fileset is not up to date

oslevel -l 4.3.3.0

vi : replacing all instances of textA with testB

:g/textA/s//textB/g

Date : playing with format

date -> 24 08 2000
date "+%s" -> 967140091
date -d '1970-01-01 967140091 sec' "+%d %m %Y" -> 24 08 2000

SAMBA

Mounting an NT share on a linux box :
mount -t smbfs -o username=myNTusername,password=myNTpassword, uid=myUNIXusername,gid=myUNIXgroup //myNTserver/directory /mnt/mymountpoint

AWK : traitement conditionnel

cat myfile.txt | awk'{if (match($1,/^F/)) {print $6} else {print $3} fi}'

CPIO : moving directory from one server to another

umask 000
rcmd myremotesystem "cd /mydirectory find . -depth -mount -print | cpio -ocvB" cpio -icvBdum

AWK : Dos to Unix text file

Awk '{sub("\r$",""); print}' dosfile.txt > unixfile.txt
awk 'sub("$","\r")' unixfile.txt > dosfile.txt

FTP : multiple get

ftp>prompt
ftp>mget *

SCO : backup

find /directory -print | cpio -ocv > /dev/rStp0

SCO : kill

kill `ps -u reuters | grep Freutserv | awk '{print $1}'`

Commandes VI :

Removing all blank characters at beginning of all lines
:g/^ */s///g
page down
<CTRL>F
Infos sur le fichier et la position du curseur
<CTRL>G
substitution de TOTO par TITI
:g/TOTO/s//TITI/g
Affichage des numeros de ligne
:set number
Masquer les numeros de ligne
:set nonumber
inserer avant la position courante du curseur
i
inserer apres la position courante du curseur
a
inserer au debut de la ligne courante
I

Renaming all files in dir :

let index=1;for i in `ls photo*`
do
  if [[ $index -lt 10 ]] then
    cp $i Pictures00$index.jpg
  else
    if [[ $index -lt 100 ]] then
      cp $i Pictures0$index.jpg
    else
      cp $i Pictures$index.jpg
    fi
  fi
let index=index+1
done