awk打印覆盖字符串 [英] awk print overwrite strings

问题描述

我在终端中使用awk时遇到问题. 我需要将一个组中的许多文件从实际目录移动到另一个目录，并且在文本文件中有必要文件的列表，如下所示:

I have a problem using awk in the terminal. I need to move many files in a group from the actual directory to another one and I have the list of the necessary files in a text file, as:

filename.txt

filename.txt

file1
file2
file3
...

我通常是数字:

paste filename.txt | awk '{print "mv "$1" ../dir/"}' | sh

并执行:

mv file1 ../dir/
mv file2 ../dir/
mv file3 ../dir/

它通常可以工作，但是现在该命令改变了其行为，awk覆盖了第一个字符串中的最后一个字符串../dir/，从初始位置再次开始了打印命令，获得:

It usually works, but now the command changes its behaviour and awk overwrites the last string ../dir/ on the first one, starting again the print command from the initial position, obtaining:

../dire1 ../dir/
../dire2 ../dir/
../dire3 ../dir/

，当然不能执行. 发生了什么? 我该怎么解决?

and of course it cannot be executed. What's happened? How do I solve it?

推荐答案

您的输入文件包含回车符(\r aka control-M).在其上运行UNIX工具之前，先在其上运行dos2unix.

Your input file contains carriage returns (\r aka control-M). Run dos2unix on it before running a UNIX tool on it.

idk您正在使用粘贴的内容，无论如何您都不应该为此使用awk，这只是一个简单的shell脚本的工作，例如经过测试后，请删除echo:

idk what you're using paste for though, and you should not be using awk for this at all anyway, it's just a job for a simple shell script, e.g. remove the echo once you've tested this:

$ < file xargs -n 1 -I {} echo mv "{}" "../dir"
mv file1 ../dir
mv file2 ../dir
mv file3 ../dir

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