MortezaJavadian/README.md

## README.md

      
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    Sed CIL Linux

sed stands for Stream Editor.

It is a powerful command-line tool on Linux and macOS. It's main job is to find and change text inside files.
Basic Syntax

sed [OPTIONS] 'SCRIPT' [INPUT_FILE...]

OPTIONS: Settings that change how sed works.
SCRIPT: The command you want to run and change text.
INPUT_FILE: The file you want to read. If you don't provide a file, sed reads from standard input (like a pipe |).

NOTE: If use sed without -i option, only prints the changes and It does not change the original file. you can check your changes at frist.
Saving Your Changes

sed -i 'SCRIPT' [INPUT_FILE...]
NOTE: Your changes saving in the file directly using the -i (--in-place) flag. so be careful to using this.
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