脚本

!/bin/bash Author: zhangdongling Copyright(C) Script follows here: echo “What is your name?” read PERSON echo “Hello ,$PERSON” variableName=”zhangdl” name=dong echo “variableName,$variableName” echo “name,$name” echo “1.”$0 #当前脚本的文件名 echo “2.”$1 #传递给脚本或函数的参数 echo “3.”$# #传递给脚本或函数的参数个数。 echo “4.”$* #传递给脚本或函数的所有参数。 echo “5.”@ #传递给脚本或函数的所有参数。被双引号(” “)包含时，与* 稍有不同，下面将会讲到。 echo “6.”$? #上个命令的退出状态，或函数的返回值。大部分命令执行成功会返回0，失败返回1 echo “8.”$@”” echo “9.”$*”” echo -e “pid is $$ \n” echo “pid is $$ \n” DATE=date echo -e “DATE is $DATE \n” USERS=who | wc -l echo -e “Logged in user are $USERS \n” UP=date;uptime echo -e “Uptime is $UP \n” ...