Important Commands for AIX

Login without root password :
# sudo Rsh
# su - batch
# ssh batst07

Check active  failover cluster server :
# sudo /usr/es/sbin/cluster/utilities/clRGinfo

IPsec stop
# /usr/sbin/ike cmd=remove all
# /usr/bin/stopsrc -g ike
# /usr/bin/stopsrc -s isakmpd
# /usr/bin/stopsrc -s tmd

IP sec start
# /usr/bin/startsrc -g ike
# /usr/bin/startsrc -s isakmpd
# /usr/sbin/ike cmd=activate;

Sort all files by size
# du -sg ./* | sort -n
# du -sm *  | sort -n | tail
# find . -xdev -ls | sort -nr +40 | head -50                               #  top 50 file consuming more space
# find . -xdev -type f -size +10000000c -exec ls -l {} \;         # top files consuming  more space

Increase Filesystem size
# sudo chfs -a size=+256M /var

Permission change
# sudo chmod 644 <file or directory name>

Start Stop TSM Client agent

# cd /etc

# rc.tsmclient check

# rc.tsmclient stop

# rc.tsmclient start

# rc.tsmclient check

if facing any issue

# ps -ef | grep dsm                #check TSM process

# sudo kill -9 <process id>   # kill all the process id's with dsm 

# sudo rc.tsmclient start

Create Snap file for PMR

# sudo snap -r                       # It will clear old logs

# sudo snap -ac

# cd /tmp/ibmsupt/

# ls -ltr

For Health Check :

# nmon                              

# topas 

Search HMC from the server

# lsrsrc "IBM.MCP"          

# lsrsrc IBM.management server

How to create tar Archive File

The following example, backup the entire 2daygeek directory content into 2daygeek-backup-17-Dec-2013.tar file and store the backup file at /backup/site-backup/ directory.

# tat -cfv <new tar file name> <source directory to tar>

# tar -cvf /backup/site-backup/2daygeek-backup-17-Dec-2013.tar /home/2daygeek  ================  tar any directory 

# tar -zcvf /backup/site-backup/2daygeek-backup-17-Dec-2013.tar.gz /home/2daygeek  ================ tar and then compress it

# tar -tvf /backup/site-backup/2daygeek-backup-17-Dec-2013.tar  

================ List Content of .tar Archive File

# tar -ztvf /backup/site-backup/2daygeek-backup-17-Dec-2013.tar.gz 

===============  List Content of tar.gz Archive File

# tar -rvf /backup/site-backup/2daygeek-backup-17-Dec-2013.tar sawan.html sawan ================ Add Files & Directory into existing tar Archive

# tar -xvf 2daygeek-backup-17-Dec-2013.tar -C /home/sawan/2daygeek  

=============== Extract tar archive File

# tar -xzvf 2daygeek-backup-17-Dec-2013.tar.gz -C /home/sawan/2daygeek 

================ Extract tar.gz Archive File

# tar -xvf 2daygeek-backup-17-Dec-2013.tar sawan.html 

================ Extract Single file from .tar archive File

# tar --extract --file=2daygeek-backup-17-Dec-2013.tar /home/2daygeek/tmp/webalizerftp/index.html

================ Extract Single file from the sub-directory of tar archive File

# tar -xvf 2daygeek-backup-17-Dec-2013.tar "sawan.html" "soni.html"

================ Extract Multiple file from tar archive File

Check application version 

# lslpp -L | grep -i java

To Fix the corrupt filesystem 

#unmount </filesystem name>

#fsck -y <lslvname>

#mount </filesystem name>

Server reboot

# shutdown -Fr

HMC Reboot

#lssyscfg -r sys -F name

#monhmc -r swap -n 0

#hmcshutdown -t now -r  reboot 

Change bootlist from maintenance mode

#bootlist -m normal -o

#bootlist -m normal hdisk17 hdisk16

#sync;sync;sync;reboot