07脚本参数传递

时间：2007-12-16 来源：bluexjj

07脚本参数传递 shift: *每次将参数位置向左偏移n位 example_01:
#!/bin/bash
#opt2
usage()
{
echo "usage:`basename $0` filenames"
}
totaline=0
if [$# -lt 2]; then
usage
exit
fi while [$# -ne 0]
do
line=`cat $1 | wc -l `
echo "$1 : ${line}"
totalline=$[$totalline + $line]
shift
done echo "______________"
echo "total : ${totalline}" getopts:
*获得多个命令行参数
example_02:
#!/bin/bash
ALL=false
HELP=false
FILE=false
VERBOSE=false
while getopts ahfvc: OPTION
do
case $OPTION in
a)
  ALL=true
  echo "ALL is $ALL"
  ;;
h)
  HELP=true
  echo "HELP is $HELP"
  ;;
f)
  FILE=true
  echo "FILE is $FILE"
  ;;
v)
  VERBOSE=true
  echo "VERBOSE is $VERBOSE"
  ;;
c)
  c=$OPTARG
  echo "c value is $c"
\?)
  echo "`basename $0` -[a h f v ] -c "
  ;;
esac
done

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