更改多个文件 [英] Change multiple files

问题描述

以下命令正确更改了 2 个文件的内容.

The following command is correctly changing the contents of 2 files.

sed -i 's/abc/xyz/g' xaa1 xab1 

但是我需要做的是动态更改几个这样的文件，我不知道文件名.我想编写一个命令，该命令将从当前目录中读取以 xa* 开头的所有文件，并且 sed 应该更改文件内容.

But what I need to do is to change several such files dynamically and I do not know the file names. I want to write a command that will read all the files from current directory starting with xa* and sed should change the file contents.

推荐答案

更好:

for i in xa*; do
    sed -i 's/asd/dfg/g' $i
done

因为没人知道有多少文件，而且很容易打破命令行限制.

because nobody knows how many files are there, and it's easy to break command line limits.

当文件过多时会发生以下情况:

Here's what happens when there are too many files:

# grep -c aaa *
-bash: /bin/grep: Argument list too long
# for i in *; do grep -c aaa $i; done
0
... (output skipped)
#

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