Linux Shell 

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# Sample.sh # 判断参数个数和第2/3个参数，括号要留空格  1  if ( [ $# != 5 ] && [ $# != 6 ] ) || ( [ $2 != "-Path" ] && [ $3 != "-Path" ] ) 2     then 3         echo "example: ***" 4         exit 1 5 fi  6  7 if [ $1 == "set" ] && [ $2 == "-pm" ] 8    then # bash/pdksh不能在等号两侧留下空格  9      PATH=$4 10    else 11      PATH=$3 12 fi 13

# 删除已经存在文件 14 if [ -e $PATH/out.txt ]15    then16       rm $PATH/out.txt17 fi18 # 调用程序 19 if [ $1 == "set" ] && [ $2 == "-pm" ] 20    then21      $4/sample.sh $1 $2 -Path $4/config $5 $622    else23      $3/sample.sh $1 -Path $3/config $4 $524 fi