-# Flags fuer "ps" ermitteln
-if [ `uname` = "FreeBSD" ]; then
- PS_FLAGS=-a; PS_PIDCOL=1
+[ -x /bin/pidof ] && exec /bin/pidof -s $@
+
+# detect flags for "ps" and "head"
+UNAME=`uname`
+if [ $UNAME = "FreeBSD" ]; then
+ PS_FLAGS="-a"; PS_PIDCOL="1"; HEAD_FLAGS="-n 1"
+elif [ $UNAME = "A/UX" ]; then
+ PS_FLAGS="-af"; PS_PIDCOL="2"; HEAD_FLAGS="-1"
+elif [ $UNAME = "GNU" ]; then
+ PS_FLAGS="-ax"; PS_PIDCOL="2"; HEAD_FLAGS="-n 1"
+elif [ $UNAME = "Linux" ]; then
+ PS_FLAGS="ax"; PS_PIDCOL="1"; HEAD_FLAGS="-n 1"
+elif [ $UNAME = "SunOS" ]; then
+ PS_FLAGS="-af"; PS_PIDCOL=2; HEAD_FLAGS="-n 1"