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Linux sed command how to replace the newline character "\ n", I believe that many inexperienced people do not know what to do, so this article summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

Linux sed command, how to replace the newline character "\ n"

In a single sed use, execute the command:

Sed "s /\ nCompact g" file

It was found that it had no effect.

Later, after checking the sed official user manual, I learned that sed processes text data on a line-by-line basis, and every time a line of data is processed, trailing newline is automatically added at the end of the line, which is actually the line delimiter or newline character.

If you have to use the sed command, and the newline character that replaces the file text content is empty, then you need to know the branch conditional command of sed, as well as the pattern space mode space and hold space retention space of sed. That is, execute the sed command on two lines in a row, so that the\ nsubstitution of the previous line can be completed.

The final program and execution results are shown in the following example:

Qilei@AFAAW-704030720:~$ cat a.txta111a22222a33333qileigh AFAAWMAUR 704030720 sed "s /\ nAccording to g" a.txta11a22222a333qileifang AFAAW704030720 a.txta11111a22222a33333 "

N adds the next line to the current hold space mode space for subsequent processing, and finally sed will print the content in the hold space mode space by default. In other words, sed can handle multiple rows of data.

An and ta are used together to realize the jump function. T means test test.

In addition, there are: an and ba matching use, you can also achieve the jump function. B is the meaning of branch branch.

What is Linux system Linux is a free-to-use and free-spread UNIX-like operating system, is a POSIX-based multi-user, multi-task, multi-threaded and multi-CPU operating system, using Linux can run major Unix tools, applications and network protocols.

After reading the above, have you mastered how to replace the newline character "\ n" in the linux sed command? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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