* Check if directory exists:
[ -d /var/log ] && echo "Directory exist" || echo "Directory does not exist"
* Compare files:
[[ /etc/resolv.conf -ef /etc/resolv.conf ]] && echo "Same files" || echo "Different Files"
[[ /etc/resolv.conf -ef /etc/passwd ]] && echo "Same files" || echo "Different Files"
* Source file unarchives into ''unpack'' folder: