RE: Sort files by filename

-----Original Message----- From: fedora-list-bounces(a)redhat.com on behalf of Mark Haney Sent: Tue 07/31/2007 10:52 AM To: For users of Fedora Cc: Subject: Sort files by filename This is really a general linux question. I have a series of files in a format like this: XXXX20070515_112011_942_10.bz2 XXXX20070515_112011_942_12.bz2 etc, and I am trying to find a way to do 2 things, one, sort these files in order, and then once in order, find the files that are numerically missing based on the last 2 numbers in the file name. So if I have (as above I want to know that file XXXX20070515_112011_942_11.bz2 is missing. Can someone get me started on this, I'm stumped. ------------------------------ Try this to start out... #!/bin/sh last_seq_number=UNKNOWN for f in `ls XXXX*bz2`; do seq_number=`echo $f | cut -d'_' -f4 | cut -d'.' -f1` if [ $last_seq_number != 'UNKNOWN' ]; then diff=`expr $seq_number - $last_seq_number` if [ $diff -ne 1 ]; then echo "Missing Files" fi fi last_seq_number=$seq_number done