Linux Command-grep for file text operations

Linux Command-grep for file text operations

File text operations

Grep	Search for text lines that meet the Regular Expression Conditions in the file
Cut	Intercepting specific fields in a file
Paste	Additional Field
Tr	Character conversion or compression
Sort	Adjust the order of text lines to conform to specific rules
Uniq	Duplicate text lines
Tee	Copy stdin to stdout and copy it to the file

Text operations are a good tool for Linux: through a series of conversions, the text files are converted into the desired form, and any program that can read stdin and write information to stdout is not out of this range, however, this is the most common and useful part.

Grep command

 

 

 

 

 

 

 

 

Advanced file operations

Awk, sed parser, m4, perl, python

Grep uses concise and Regular Expressions

Regular Expression usage

Assertion with Zero Width of a regular expression

Regular Expressions and file formatting commands in Linux (awk/grep/sed)

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