# Create some files
$touch {1..3}{a..c}.{ctl,log}
$ls
1a.ctl  1a.log  1b.ctl  1b.log  1c.ctl  1c.log  2a.ctl  2a.log  2b.ctl  2b.log  2c.ctl  2c.log  3a.ctl  3a.log  3b.ctl  3b.log  3c.ctl  3c.log  junk.pl
$echo "SRS_222" >> 1c.ctl
$echo "SRS_333" >> 1c.log
$echo 'SRS_111SRS_2222SRS_3333' > 1a.log