Need help with script to check all partitions

rng · 05-19-2013, 11:40 AM

I want to write a script that will check all ext2/3/4 partitions with the command e2fsck. Following part detects and checks all partitions of type ext2/3/4:

Code:

while read dev _ 
do
   echo "ext partition found = $dev"
   e2fsck $dev
done <<< "$( blkid | grep 'TYPE="ext' | cut -d':' -f1 )"

How can I check if any of these partitions is mounted since it is not recommended to check mounted partitions? Or there is no need to modify this since the command e2fsck will not check a mounted partition? Thanks for your help.

Ygrex · 05-19-2013, 12:12 PM

usually «mount» is used for that; say you'd like to know if /dev/sda1 is mounted:

Code:

$ dev=/dev/sda1 ; LC_ALL=C mount | cut -f1 -d" " | while read mp ; do test "$dev" -ef "$mp" && { echo "$mp" ; break ; } ; done

rng · 05-19-2013, 08:39 PM

I have to reach ' echo "$mp" ' if the partition is not mounted. I am not able to figure out how to do that. I tried: || instead of && and also test !(......) but it is not working since we need to compare 2 lists (one from blkid and other from mount command) and we need to pick out only those which are in blkid list but not in mount list.