S replacement method in Linux VI

You can use the: s command to replace characters in Vi/vim
: s/vivian/sky/ReplacementCurrent Line first one Vivian for Sky
: s/vivian/sky/g ReplacementCurrent LineAllVivian for Sky
: N, $s/vivian/sky/replaces the first Vivian of each row in the nth row to the last row is sky
: N, $s/vivian/sky/g replace the nth line to the last row all Vivian are sky
N is a number, if N is., indicating the beginning of the current line to the last row
:%s/vivian/sky/(equivalent to: g/vivian/s//sky/) Replaceeach rowOffirst oneVivian for Sky
:%s/vivian/sky/g(equivalent to: g/vivian/s//sky/g) Replaceeach rowInAllVivian for Sky

You can use # as a delimiter, at which time the middle / not as a delimiter

: s#vivian/#sky/# Replace the current row the first vivian/is sky/
:%s+/oradata/apras/+/user01/apras1+ (use + to replace/):/oradata/apras/replaced with/user01/ apras1/

5. Delete the ^m in the text

Problem Description:
For line breaks, the window is replaced with a carriage return (0a0d), which is represented by a carriage return (0A) under Linux. This way, when you copy a file on a window to UNIX, there is always a ^m. Write a shell or C program that uses a newline character (0D) that filters Windows files under UNIX.

Using the command: Cat filename1 | tr-d "^v^m" > NewFile;
Use command: sed-e "s/^v^m//" filename > outputfilename. Note that in 1, 22 methods, ^v and ^m refer to Ctrl + V and ctrl+m. You have to do the input manually, not paste.
In VI Processing: First use VI to open the file, and then press the ESC key, followed by the command:%s/^v^m//.
:%s/^m$//g

If the above method is useless, the correct solution is:

Tr-d "\ r" < src >dest
Tr-d "\015" dest
Strings A>b

6. Other

Use the: s command to implement a string substitution. Specific uses include:

: s/str1/str2/replaces the first occurrence of a string in a line with a string str2 str1
: S/str1/str2/g replaces all occurrences of strings in a line with a string str2 str1
:., $ s/str1/str2/g Replace all occurrences of the current line to the end of the string with the string str2 str1

1,$ s/str1/str2/g replaces all occurrences of strings in the body with a string str2 str1
: g/str1/s//str2/g function Ibid.

You can see from the Replace command above that the G is placed at the end of the command to replace each occurrence of the search string, without g, which means that only the search

Replace the first occurrence of the string, and G at the beginning of the command to replace all rows in the body that contain the search string.

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S replacement method in Linux VI