tools/regression/bin/sh/builtins/trap6.0

   1 # $FreeBSD: src/tools/regression/bin/sh/builtins/trap6.0,v 1.1 2011/01/16 13:56:41 jilles Exp $
   2
   3 v=$(
   4         ${SH} -c 'trap "echo ok; exit" USR1; kill -USR1 $$' &
   5         # Suppress possible message about exit on signal
   6         wait $! >/dev/null 2>&1
   7 )
   8 r=$(kill -l $?)
   9 [ "$v" = "ok" ] && { [ "$r" = "USR1" ] || [ "$r" = "usr1" ]; }