Simple tip about Gtar
IF a tar file is too large to untar in same directory , then we may use gtar to to untar the output file to another directory where we may have enough space :
Eg : the tat file is in /var/crash and i wanted the output to /var/tmp. the syntax is as follows :
/usr/sfw/bin/gtar -C /var/tmp -xf /var/crash/patches.tar
where as patches.tar is the Original tar file and its output would be redirected to /var/tmp using the gtar command.