在行尾添加 sed [英] Add at the end of the line with sed

问题描述

给定一个包含多行的纯文本文档，例如:

given a plain text document with several lines like:

c48 7.587 7.39
c49 7.508 7.345983
c50 5.8 7.543
c51 8.37454546 7.34

我需要在行尾后 2 个空格处添加一些信息，因此对于每一行我都会得到:

I need to add some info 2 spaces after the end of the line, so for each line I would get:

c48 7.587 7.39  def
c49 7.508 7.345983  def
c50 5.8 7.543  def
c51 8.37454546 7.34  def

我需要为数千个文件执行此操作.我猜这可能与 sed 有关，但不知道如何操作.任何提示?你能否也给我一些关于这些案例的教程或表格的链接?

I need to do this for thousands of files. I guess this is possible to do with sed, but do not know how to. Any hint? Could you also give me some link with a tutorial or table for this cases?

谢谢

推荐答案

如果所有文件都在一个目录中

if all your files are in one directory

sed -i.bak 's/$/  def/' *.txt

递归执行(GNU find)

to do it recursive (GNU find)

find /path -type f -iname '*.txt' -exec sed -i.bak 's/$/  def/' "{}" +;

您可以在这里查看 sed 的介绍

you can see here for introduction to sed

您可以使用的其他方式，

Other ways you can use,

糟糕

for file in *
do
  awk '{print $0" def"}' $file >temp
  mv temp "$file"
done 

Bash 外壳

for file in *
do
  while read -r line
  do
      echo "$line def"
  done < $file >temp
  mv temp $file
done

这篇关于在行尾添加 sed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！