脚本实现划分考试等级层次;
通常类unix系统下的压缩包的压缩程序类型不外乎是zip,gzip,bzip2这3中,现用file命令捕获Zip archive*,写出智能解压缩压缩包脚本如下;
shell编程之case实例
case结构如下;case ${variable} in ${variable}1)do something here or execute commands;; ${variable}2)do ;; ${n}) ;;esac###############################################linux智能解压包脚本#Create on 2013-07-23 by Qrui#【注,linux中一般的*.tar.gz,*.tar.gz2,*.zip等压缩文件都是经过gzip,zip,bzip2 这3个基本的压缩程序压缩创建的】#原理,我们使用linux下的file查看系统下面的文件类型来编程;##############################################具体代码如下;#!/bin/sh#Create on 2013-07-23 by Qruiftype="$(file "$1")" //查看压缩文件的压缩类型,通常是Zip archive;gzip compressed;bzip2 compress;case "$ftype" in "$1: Zip archive"*) //使用file捕获压缩包的压缩类型,"$1: Zip archive"*格式应和file查看到的相关的压缩格式一致 unzip "$1" ;; //执行智能解压 "$1: gzip compressed"*) gunzip "$1" ;; "$1: bzip2 compress"*) bunzip2 "$1" ;;*) echo "Sorry, file $1 can not be uncompressed with this shell" ;;esacecho -n "Thanks take part in! bye." 下面再举个对比脚本,使"$1: Zip archive"*)处的变量更直观,#!/bin/shecho -n "enter a number from 1 to 3"read NUMcase $NUM in 1)echo "you select 1";; 2)echo "you select 2";; 3)echo "you select 3";; *)echo "basename $0 this is not between 1 and 5"esac posted on 2013-07-23 13:54 阅读( ...) 评论( ...)