$ $tcsh: set25,v 1.3 2011/02/04 18:19:33 christos Exp $
$ tc.sig.c
$set 25 
1 our wait %d\n
2 viga: bsd_signal(%d) pole signaal\n
3 viga: bsd_signal(%d) - sigaction ebaõnnestus, errno = %d\n