#!/bin/sh

recipefile='/home/mats/datafiles/recept.txt'

usage()
{
    echo "usage: recept [-g] [searchstring]" >&2
    exit 1
}

while getopts ":g" c
do
    case "$c" in
    g)     g_flag=1;;
    :|'?') usage;;
    esac
done

if [ $OPTIND -lt $# ]; then usage; fi
shift $(($OPTIND - 1))

if [ $# -eq 0 ] ; then
    less ~/datafiles/recept.txt
else
    if [ -n "$g_flag" ]; then
	grep -1 "$1" $recipefile | less
    else
	less -G -p "$1" $recipefile
    fi
fi
.