Linux text The sed of the Three Musketeers

Sed:stream Editor, line editors

Usage:

sed [option] ... ' Script ' Inputfile ...

Script

' Address command '

Common options:

-N: Do not output the contents of the mode to the screen

-e: Multi-point editing

-f/path/to/script_file: Reading the edit script from the specified file

-R: Supports the use of extended regular expressions

-I: In situ editing

Address delimitation:

(1) Not to address: The full text of the processing

(2) Single address:

#: The specified row

/pattern/: Each row to which the pattern can be matched

(3) Address range:

#,#

#,+#

/pat1/,/pat2/

#,/pat1/

(4) ~: Step forward

Edit command:

D: Delete

P: Display the contents of the mode space

A \text: Append text at the end of the line; Support for multiline append using \ n

I \text: inserting text in front of the line; Support for multi-row insertion using \ n

C \text: Replacing a line of behavior or multiple lines of text

W/path/to/somefile: Save the pattern space to match the line to the specified file

R/path/from/somefile: Reads the text of the specified file after the line that matches the line in the pattern space

=: Prints line numbers for lines in pattern space

!: Take a reverse condition

s///: Supports the use of other separators, [email protected]@@,s###

Replace tag:

G: In-line global substitution

P: Show the rows that were successfully replaced

W/path/to/somefile: Saves the result of the substitution success to the specified file

Advanced Editing Commands:

H: Overwrite the contents of the pattern space in the hold space

H: Append the contents of the pattern space to the hold space

G: Remove data from hold space to pattern space

G: Append content from hold space to mode space

x: Swap the content in the pattern space with the content in the hold space

N: Reads the next line of matching rows to the pattern space

N: Append the next line of matching rows to the mode space

D: Delete rows in the pattern space

D: Delete all rows in multi-line mode space

Sed-n ' N;p ' FILE: Show even rows

Sed ' 1! G;h;$!d ' file: Reverse display of the contents of files

Sed ' $! n;$! D ' file: Two lines after removing the file

Sed ' $!d ' file: Take out the last line of files

Sed ' G ' FILE

Sed '/^$/d; G ' FILE:

Sed ' n;d ' FILE: Show Odd lines

Sed-n ' 1! g;h; $p ' file: Reverse display of each row in a file

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Linux text The sed of the Three Musketeers