之前有一个朋友问过我，如何把当前目录下所有的tar.gz文件分别解压到以该压缩文件命名的文件夹中，且文件夹不带“.tar.gz”。
由于当时对数据流重定向还不算太熟悉，未能帮得上忙。
现在想起来，解决的方法其实很简单：
假设当前目录下有universe.tar.gz，galaxy.tar.gz，solar.tar.gz三个文件：
大概的步骤是：把三个文件名赋值给变量filename，然后使用for … in …循环进行mkdir和解包：
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#!/bin/bash #Get the files name. filesname=$(ls *.tar.gz -a|sed "s/.tar.gz//g") #for loop for packname in $filesname do mkdir $packname tar zxvf $packname.tar.gz -C $packname done echo "Finished." |
当然，这只是一个比较简单的解决方案，其实通过read，能制作出交互式的Shell Script，并且支持选择压缩文件类型：
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#!/bin/bash #loop for tar function_tarfiles() { #Get the files name. filesname=$(ls *.$type -a|sed "s/.$type//g") for packname in $filesname do echo "Unpacking the $packname.$type." mkdir $dir$packname tar -z -$compress -f $packname.$type -C $dir$packname||error=1 if [ "$error" = 1 ];then echo "$packname.$type unpack failed." fi done echo "Finished." } #loop for zip function_zipfiles() { #Get the files name. filesname=$(ls *.$type -a|sed "s/.$type//g") for packname in $filesname do echo "Unpacking the $packname.$type." mkdir $dir$packname unzip $packname.$type -d $dir$packname||error=1 if [ "$error" = 1 ];then echo "$packname.$type unpack failed." fi done echo "Finished." } #Which type? echo "zip: The pack which use zip command to compress." echo "tar.gz: The pack which use tar command and gzip compress." echo "tar.bz2 The pack which use tar command and bzip2 compress." read -p "What are the packaging type of your pack?(zip or tar.gz or tar.bz2):" type read -p "Where would you like to save the unpack files?(Do not foget the / at last. eg. /home/unpack/):" dir if [ "$type" = "zip" ];then function_zipfiles elif [ "$type" = "tar.gz" ];then compress=x function_tarfiles elif [ "$type" = "tar.bz2" ];then compress=j function_tarfiles else echo "Wrong type." exit 1 fi |
虽然加了挺多的功能，但是我觉得我这样写有点复杂。只用tar打包没压缩的类型我还没加进去。也有很多需要完善的地方。如果各位高人有兴趣，拿来修改修改吧。
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