在每行末尾添加文本 [英] Add text at the end of each line

问题描述

我在 Linux 命令行上，我有文件

I'm on Linux command line and I have file with

127.0.0.1
128.0.0.0
121.121.33.111

我想要

127.0.0.1:80
128.0.0.0:80
121.121.33.111:80

我记得我的同事为此使用了 sed，但在阅读 sed 手册后仍然不清楚如何在命令行上执行此操作?

I remember my colleagues were using sed for that, but after reading sed manual still not clear how to do it on command line?

推荐答案

您可以尝试使用以下内容:

You could try using something like:

sed -n 's/$/:80/' ips.txt > new-ips.txt

前提是您的文件格式与您在问题中描述的一样.

s/// 替换命令匹配(finds)文件中每一行的结尾(使用 $ 字符)和然后将 :80 附加(replaces)到每一行的末尾.ips.txt 文件是您的输入文件...而 new-ips.txt 是您新创建的文件(更改的最终结果.)

The s/// substitution command matches (finds) the end of each line in your file (using the $ character) and then appends (replaces) the :80 to the end of each line. The ips.txt file is your input file... and new-ips.txt is your newly-created file (the final result of your changes.)

此外，如果您有一个 IP 号码列表，这些 IP 号码碰巧已经附加了端口号，(如 Vlad 和 aragaer 给出的，)你可以尝试使用类似的东西:

Also, if you have a list of IP numbers that happen to have port numbers attached already, (as noted by Vlad and as given by aragaer,) you could try using something like:

sed '/:[0-9]*$/ ! s/$/:80/' ips.txt > new-ips.txt

因此，例如，如果您的输入文件看起来像这样(注意 :80):

So, for example, if your input file looked something like this (note the :80):

127.0.0.1
128.0.0.0:80
121.121.33.111

最终的结果应该是这样的:

The final result would look something like this:

127.0.0.1:80
128.0.0.0:80
121.121.33.111:80

这篇关于在每行末尾添加文本的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！