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来自「Berkely的学生写的」· 代码 · 共 41 行

#!/bin/sh
# Chapter 12 - Using getopts
#
# This wrapper script around the uuencode command demonstrates the use
# of the getopts command for parsing arguments in shell scripts

USAGE="Usage: `basename $0` [-v] [-f] [filename] [-o] [filename]";
VERBOSE=false

while getopts f:o:v OPTION ; do
    case "$OPTION" in
        f) INFILE="$OPTARG" ;;
        o) OUTFILE="$OPTARG" ;;
        v) VERBOSE=true ;;
       \?) echo "$USAGE" ; 
           exit 1 
           ;;
    esac
done

shift `echo "$OPTIND - 1" | bc`

if [ -z "$1" -a -z "$INFILE" ] ; then
    echo "ERROR: Input file was not specified."
    exit 1
fi
if [ -z "$INFILE" ] ; then INFILE="$1" ; fi
: ${OUTFILE:=${INFILE}.uu}

if [ -f "$INFILE" ] ; then
    if [ "$VERBOSE" = "true" ] ; then
        echo "uuencoding $INFILE to $OUTFILE... \c"
    fi
    uuencode $INFILE $INFILE > $OUTFILE ; RET=$?
    if [ "$VERBOSE" = "true" ] ; then
        MSG="Failed" ; if [ $RET -eq 0 ] ; then MSG="Done." ; fi
        echo $MSG
    fi
fi
exit 0