Useful Linux Commands

Here are some useful Linux commands which are useful, It will be updated frequently - 

Restart VMware tools

  • /etc/vmware-tools/ restart 

Reset user account with failed login attempts

  • pam_tally2 --user=username --reset
  • pam_tally2 -r -u username

Start date and time of a linux process

  • ps -eo pid,lstart,cmd
TSM backup client status, start, stop, restart
  • # service dsmcad start # service dsmcad stop # service dsmcad restart # service dsmcad statis
TSM client home dir.
  • /opt/tivoli/tsm/client/ba/bin/

Top files using high space in current directory 
  • find . -xdev -type f -size +100M -exec du -sh {} ';' | sort -rh | head -n50
Compress a file using gzip
  • gzip -c logfile > /tmp/logfile.gz && > logfile

SUSE linux fs extend
  • lvextend -L +1G /dev/mapper/system-lvopt # resize_reiserfs -f /dev/vg01/lvol1 or for btrfs btrfs filesystem resize max /opt

  • # umount /dev/vg01/lvol1 # resize_reiserfs /dev/vg01/lvol1 # mount -treiserfs /dev/vg01/lvol1


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