Shulou(Shulou.com)06/03 Report--

This article introduces the methods of replacing strings in vim. If you encounter this problem in your daily study or work, I hope you can solve the problem of replacing strings through several methods in this article.

:% s/str1/str2/g replaces all str1 in each line for str2 commonly used!

: s/str1/str2/g replaces all str1 in the current line to str2

Basic replacement

: s/str1/str2/ replaces the current line with str2 as the first str1

: s/str1/str2/g replaces all str1 in the current line to str2

The first str1 of each line from the beginning of line n to the last line of replacement is str2

All str1 in each line from the beginning of line n to the last line is str2

(n is a number, if n is., from the current line to the last line)

:% s/str1/str2/ (equivalent to: g/str1/s//str2/) replaces the first str1 of each line with str2

:% s/str1/str2/g (equivalent to: g/str1/s//str2/g) replaces all str1 in each line with str2

You can use # as the delimiter, and the / that appears in the middle will not be the delimiter

: s#str1/#str2/# replaces the current line with str2/ as the first str1/

:% swatches str11/str12/ str11 Universe str12 Universe Stern 22 + (use + to replace /): / str11/str12/ replace / str21/str22/

Delete ^ M from the file

Problem description: for line feeds, enter newline (0A0D) is used in Windows, and carriage return (0A) is used in Linux. In this way, when you copy a file on window to Unix, there will always be a ^ M. please write a shell or c program that filters the newline character (0D) of Windows file under Unix. There are two ways to do this:

(1) use the command: cat oldfilename | tr-d "^ V ^ M" > newfilename

(2) use the command: sed-e "s / ^ V ^ M / /" oldfilename > newfilename

It should be noted that in methods 1 and 2, ^ V and ^ M refer to Ctrl+V and Ctrl+M. You have to type it by hand, not paste it.

Processing in vim: first open the file using vim, then press the ESC key, and then enter the command:

:% s / ^ V ^ M / /

:% s / ^ M $/ / g

If the above methods are useless, the correct solution is:

(1) tr-d "\ r"

New_file_name or cat oldfilename | tr-d "\ r" > new_file_name

(2) tr-d "\ 015"

New_file_name or cat oldfilename | tr-d "\ 015" > new_file_name

Strings A > B

Other skills

You can use the: s command to replace a string. Specific uses include:

: s/str1/str2/ replaces the string str1 that first appears on the line with the string str2

S/str1/str2/g replaces all occurrences of the string str1 on the line with the string str2

:. $s/str1/str2/g replaces the string str1 that appears from the current line to the end of the body with the string str2

: 1 s/str1/str2/g $s/str1/str2/g replaces all the strings str1 that appear in the body with the string str1

G/str1/s//str2/g function is the same as above

From the above replacement command, you can see that g is placed at the end of the command, which means that each occurrence of the search string is replaced; without g, only the first occurrence of the search string is replaced; g is placed at the beginning of the command. means to replace all lines in the body that contain the search string.

The: s command can be used in vi/vim to replace strings. In the past, only one format was used to replace the full text. Today, I found that there are many ways to write this command (vi is really powerful, there is still a lot to learn). Record a few here to facilitate future query.

Replace

: s/vivian/sky/ replaces the current line with sky as the first vivian

: s/vivian/sky/g replaces all vivian in the current line to sky

The first vivian of each line from the beginning of line n to the last line of replacement is sky

All vivian in each line from the beginning of the nth line to the last line is sky

N is a number. If n is., it starts from the current line to the last line.

:% s/vivian/sky/ (equivalent to: g/vivian/s//sky/) replaces the first vivian of each line with sky

:% s/vivian/sky/g (equivalent to: g/vivian/s//sky/g) replaces all vivian in each line with sky

You can use # as the delimiter, and the / that appears in the middle will not be the delimiter

: s#vivian/#sky/# replaces the current line with sky/ as the first vivian/

:% oradata/apras/ oradata/apras/ aprasqpr apras1 + (replace with +): / replace with /): / replace with / apras1 +: / apras1 +

* *

Delete ^ M from text

Problem description: for line feeds, enter newline (0A0D) is used in window, and carriage return (0A) is used in linux. In this way, when you copy a file from window to unix, there will always be a ^ M. Please write a shell or c program to filter the newline character (0D) of windows files under unix.

Use the command: cat filename1 | tr-d "^ V ^ M" > newfile

Use the command: sed-e "s / ^ V ^ M / /" filename > outputfilename. It should be noted that in methods 1 and 2, ^ V and ^ M refer to Ctrl+V and Ctrl+M. You have to type it by hand, not paste it.

Processing in vi: first open the file using vi, then press the ESC key, and then enter the command:% s / ^ V ^ M / /.

:% s / ^ M $/ / g

If the above methods are useless, the correct solution is:

Tr-d "r" dest

Tr-d "5" dest

Strings A > B

Other

You can use the: s command to replace a string. Specific uses include:

: s/str1/str2/ replaces the string str1 that first appears on the line with the string str2

S/str1/str2/g replaces all occurrences of the string str1 on the line with the string str2

:. $s/str1/str2/g replaces the string str1 that appears from the current line to the end of the body with the string str2

: 1 s/str1/str2/g $s/str1/str2/g replaces all the strings str1 that appear in the body with the string str1

G/str1/s//str2/g function is the same as above

From the above replacement command, you can see that g is placed at the end of the command to replace each occurrence of the search string; without g, it means only the search

The first occurrence of the string is replaced; g is placed at the beginning of the command to replace all lines in the body that contain the search string.

This is the end of the method of replacing strings in vim. I hope the above content can be helpful to you and you can learn more. If you think the article is good, you can share it for more people to see.

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