:
##########################################################################
# Shellscript:	tmpname - print temporary file name
# Author     :	Heiner Steven <heiner.steven@odn.de>
# Date       :	1992-12-18
# Category   :	File Utilities
# SCCS-Id.   :	@(#) tmpname	1.2 04/02/18
##########################################################################
# Description
#   - A name is unique for each terminal session
#   - The file will be written into the directory given by the TMPDIR
#     environment variable (default is /tmp)
#   - An argument will be used as part of the file name. This way,
#     multiple file names can be created (e.g. "tmpname 0", "tmpname 1").
##########################################################################
# Changes
# 1993-02-10	stv	create shorter file names 
##########################################################################

PN=`basename "$0"`			# Program name
VER='1.2'

Usage () {
    echo >&2 "$PN - create temporary file name, $VER
usage: $PN [-p prefix] [id]
    -t: file name prefix (default is \"t\")

The temporary file name is unique for each terminal session (derived
from the output of the command \"tty\"). Multiple temporary files for a
given session can be created by specifying an \"id\" on the command
line. This id will be appended to the base file name. The line

    rm \`tmpname\`*

will remove all files created using \"tmpname 0\", \"tmpname 1\" etc."
    exit 1
}

Msg () {
    for MsgLine
    do echo "$PN: $MsgLine" >&2
    done
}

Fatal () { Msg "$@"; exit 1; }

set -- `getopt :hp: "$@" || exit 1` || Usage
[ $# -lt 1 ] && Usage			# "getopt" detected an error

Prefix=t
while [ $# -gt 0 ]
do
    case "$1" in
	-p)	Prefix=$2; shift;;
	--)	shift; break;;
	-h)	Usage;;
	-*)	Usage;;
	*)	break;;			# First file name
    esac
    shift
done

if [ $# -gt 0 ]
then	Id="$1"
else	Id=
fi

: ${TMPDIR:=/tmp}			# Directory containing file
TermName=`tty 2>&1 | sed -e 's:/dev/::' | sed -e 's:/::g'`
echo "$TMPDIR/$Prefix${TermName}$Id"