What is the linux replacement command?

Linux replacement command: 1. Use the ":s/original content/replacement content/" command in vim to replace the content; 2. Use sed with grep to replace the content; 3. Use "find -name file name | xargs perl -pi -e 's|Original content|Replacement content|g'" command replaces the content.

#The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

What is the linux replacement command?

1. Replace through vim editor

You can use the :s command to replace strings in vi/vim .

:s/well/good/ Replace the first well in the current line with good

:s/well/good/g Replace all wells in the current line with good

: n,$s/well/good/ Replace the first well in each line from the nth line to the last line with good

:n,$s/well/good/g Replace the nth line to All wells in each line in the last line are good n is a number, if n is ., it means from the beginning of the current line to the last line

:%s/well/good/ (equivalent to: g/well/s/ /good/) Replace the first well in each line with good

:%s/well/good/g (equivalent to: g/well/s//good/g) Replace all wells in each line For good, you can use # as the separator. At this time, the / appearing in the middle will not be used as the separator

:s#well/#good/#. Replace the first well/ in the current line with good/

:%s#/usr/bin#/bin#g You can replace all paths /usr/bin in the file with /bin

2, cooperate with sed and grep

sed -i s/yyyy/xxxx/g `grep yyyy -rl --include="*.txt" ./`

Function: Replace the yyyy string in all txt files in the current directory (including subdirectories) with the xxxx string. Among them,

-i indicates that the file is being operated, and the grep command enclosed in `` indicates that the result of the grep command is used as the operating file.

s/yyyy/xxxx/ means to search for yyyy and replace it with xxxx, followed by g means that when there are multiple yyyy in a line, replace them all instead of just replacing the first one

In addition , if you do not need to find subdirectories and only need to replace in the current directory, just use the sed command. The command is as follows: sed -i s/xxxx/yyyy/g ./*.txt

3.find Command find and replace

find -name '要查找的文件名' | xargs perl -pi -e 's|被替换的字符串|替换后的字符串|g'

#Find and replace strings contained in the current directory and replace

find -name '*.txt' | xargs perl -pi -e 's| Replaced content|Replaced content|g'             #Recursive search and replacement

find . -type f -name '*.html' | xargs perl -pi -e 's|Replaced content|Replaced content|g'

Related recommendations: "Linux Video Tutorial"

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