Linux sed example - find a replace string in /etc/fstab.  Changing "sdb1" to "VolGroup00/local"

for i in `cat lists/dblist`; do ssh -t $i "sudo sed -i 's/sdb1/VolGroup00\/local/' /etc/fstab"; done

Linux parted from command line.  Remove partition number 1 on sdb.

parted -s /dev/sdb -- rm 1