:
##########################################################################
# Title      :	pidof - get process id (PID) from name
# Author     :	Heiner Steven <heiner.steven@odn.de>
# Date       :	1996-09-11
# Requires   :
# Category   :	System Utilities
# SCCS-Id.   :	@(#) pidof	1.5 05/08/24
##########################################################################
# Bugs
#    o	Some special characters ("*", ...) break the awk expression
##########################################################################

PN=`basename "$0"`			# Program name
VER='1.5'

Usage () {
    echo >&2 "$PN - get process id (PID) from name, $VER
usage: $PN [-av] name [...]
    -a:   search process arguments for given name, too
    -v:   print verbose output

$PN only matches complete names."
    exit 1
}

relaxed=false				# Check arguments, too (true/false)
verbose=false
while getopts :av Opt
do
    case "$Opt" in
	a)	relaxed=true;;
	v)	verbose=true;;
	?)	Usage;;
    esac
done
shift `expr $OPTIND - 1`

[ $# -gt 0 ] || Usage

# System V style "ps" cuts the command name to eight characters for "ps -c"
shortname=false

# Check which options to use with this system
if ps -ef > /dev/null 2>&1
then                            # System V style
    if [ $relaxed = true ]
    then PS="ps -ef"; Col=2
    else PS="ps -e";  Col=1; shortname=true;
    fi
else                            # BSD style
    if [ $relaxed = true ]
    then PS="ps -aux"; Col=2
    else PS="ps -cax"; Col=1
    fi
fi

# Build one "awk" search pattern from all command names:
#   "(cmd1|cmd2|cmd3)"

Pattern=
for Name
do
    cmd=$Name
    if [ $shortname = true ]
    then
	# Some systems use a short name, some do not use it. We search
	# for both the short and the long name
    	cmd="$cmd|`echo \"$Name\" | cut -c1-8`"
    fi
    Pattern="${Pattern:+$Pattern|}$cmd"
done
Pattern="[ 	\/]($Pattern)([ 	]|$)"

if [ $verbose = false ]
then
    $PS | awk "/$Pattern/ { print \$$Col }"
else
    $PS | awk "/$Pattern/ { print }"
fi