#!/bin/ksh
# pidof: reports PID of a given process.
#
#     BSD ps command:  ps axc
#
# Solaris ps command:  ps -ef -o pid,tty,s,time,comm
#                      (use fname instead of comm for first
#                       8 characters of program basename,
#                       or use /usr/ucb/ps axc)

PATH=/bin:/usr/bin
export PATH

# version: prints the current version to stdout.
version () {
    lsedscr='s/RCSfile: //
    s/.Date: //
    s/,v . .Revision: /  v/
    s/\$//g'

    lrevno='$RCSfile: pidof,v $ $Revision: 1.1 $'
    lrevdate='$Date: 2004/05/21 22:11:58 $'
    echo "$lrevno $lrevdate" | sed -e "$lsedscr"
}

case "$#" in
    1)  ;;
    *)  echo "usage: $0 procname" >&2; exit 1 ;;
esac

case "$1" in
    -v) version; exit 0 ;;
    *)  ;;
esac

ps -axc |
  exec nawk -v prog="$1" '{ if ($5 == prog) print $1 }'