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cli-sedHow do I use the sed command line in bash?

The sed command line is a powerful tool for text manipulation in bash. It allows users to search, find, and replace text in files. To use sed, the syntax is sed [options] 'command' file(s).

For example, to replace all occurrences of the word "dog" with "cat" in the file animals.txt, the following command can be used:

sed 's/dog/cat/g' animals.txt

This command will output the contents of animals.txt with all occurrences of "dog" replaced with "cat".

The command consists of the following parts:

  • sed: the command itself
  • s/dog/cat/g: the search and replace command, where s stands for substitute, dog is the search pattern, cat is the replacement string, and g stands for global, meaning to replace all occurrences
  • animals.txt: the file to be modified

For more information on sed and its options, see the GNU sed Manual.

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