Possible Duplicate:List files sorted numerically How can I sort this according to the number of last field? I tried with sort -t ' ' -k9,10n:-rw-r--r-- 1 root   root    440 May 14 08:52 test.txt.6-rw-r--r-- 1 root   root    470 May 14 08:52 test.txt.8-rw-r--r-- 1 root   root   2.6K May 14 08:52 test.txt.14-rw-r--r-- 1 root   root    449 May 14 08:52 test.txt.7-rw-r--r-- 1 root   root    434 May 14 08:52 test.txt.13-rw-r--r-- 1 root   root    554 May 14 08:52 test.txt.4-rw-r--r-- 1 root   root    426 May 14 08:52 test.txt.12-rw-r--r-- 1 root   root   1.6K May 14 08:52 test.txt.5-rw-r--r-- 1 root   root   7.2K May 14 08:52 test.txt.11-rw-r--r-- 1 root   root    444 May 14 08:52 test.txt.3-rw-r--r-- 1 root   root    927 May 14 08:52 test.txt.9-rw-r--r-- 1 root   root    681 May 14 08:52 test.txt.15-rw-r--r-- 1 root   root    427 May 14 08:52 test.txt.2-rw-r--r-- 1 root   root    458 May 14 08:52 test.txt.16-rw-r--r-- 1 root   root   2.4K May 14 08:52 test.txt.10-rw-r--r-- 1 root   root    423 May 14 08:52 test.txt.17-rw-r--r-- 1 root   root    424 May 14 08:52 test.txt.1
Numerically sorting files
shell;sort