#!/bin/sh
#
# mkexec --
#
# Time-stamp: "1999-03-10 22:57:09 ttate"
# Require:
#   mv,cat,chmod


LINE="#!"
TARGETS=
TMP=tmp
MODE=ugo+x

while test "$1" != ""
do
    case "$1"
    in
    "-h"|"--help") 
	echo "Copyright (C) 1999 by Takaaki Tateishi <ttate@jaist.ac.jp>"
	echo "mkexec [-h|--help] [(-c|--command) command]"
	echo "       [(-m|--mode) mode] file [file1 ...]"
	exit;;
    "-c"|"--command") shift; LINE="$LINE$1"; shift;;
    "-m"|"--mode") shift; MODE=$1; shift;;
    "-"*) echo "$1: unkown option"; exit;;
    *) TARGETS="$TARGETS $1"; shift;;
    esac
done

if test "$TARGETS" = ""
then
    echo "no target file."
    exit
fi

for f in $TARGETS
do
    NUM=1
    while test -f $TMP$NUM
    do
	NUM=`expr $NUM + 1`
    done

    echo $LINE > $TMP$NUM
    cat $f >> $TMP$NUM
    mv -f $TMP$NUM $f
    chmod $MODE $f
done