#!/bin/bash
# inpath--Verifies that a specified program is either valid as is
#  or can be found in the PATH directory list

in_path()
{
    # Given a command and the PATH, tries to find the command.  Returns 0 if
    #  found and executable; 1 if not.  Note tha this temporarily modifies
    #  the IFS (internal field separator) but restores it upon completion.
    
    cmd=$1  ourpath=$2  result=1
    oldIFS=$IFS IFS=":"

    for directory in $ourpath
    do
        if [ -x $directory/$cmd ] ; then
            result=0  # If we're here, we found the command.
        fi
    done

    IFS=$oldIFS
    return $result
}

checkForCmdInPath()
{
    var=$1

    if [ "$var" != "" ] ; then
        if [ "${var:0:1}" = "/" ] ; then
            if [ ! -x $var ] ; then
                return 1
            fi
        elif ! in_path $var "$PATH" ; then
            return 2
        fi
    fi
}

#if [ $# -ne 1 ]; then
    #echo "Usage: $0 command" >&2
    #exit 1
#fi

#checkForCmdInPath "$1"
#case $? in
    #0 ) echo "$1 found in PATH"  ;;
    #1 ) echo "$1 not found or not executable"  ;;
    #2 ) echo "$1 not found in PATH"  ;;
#esac

#exit 0