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                # 打包和拆包(bundle and unbundle) > 打包就是將很多個小的Awk文件合并到一個大文件中,而拆包就是相反的還原操作。 打包的目的是節省磁盤空間或者用于郵件傳輸等,我們看看下面的示例: ``` $ cat bundle.awk # bundle.awk 打包多個文件到一個文件中 FNR==1{ print "FILENAME: "FILENAME} {print $0 } $ cat unbundle.awk # unbundle.awk 拆包一個文件到多個文件中 /^FILENAME:/{ if (prev != "") close(prev); prev=$2; } !/^FILENAME:/ && prev != "" { print $0 > prev } ``` 上面的打包和拆包操作都是最簡單的實現示例,實際的打包和拆包已經由`tar`命令實現了,我們并不需要這樣的Awk程序來完成了,當然你要知道的是如果你想這樣做打包拆包操作Awk也是可以做到的的。
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