tldr/pages/common/sed.md

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# sed
> Run replacements based on regular expressions.
- Replace all occurrences of a string in a file, and print the result:
`sed 's/{{find}}/{{replace}}/g' {{filename}}`
- Replace all occurrences of a string in a file, and overwrite the file contents:
`sed -i 's/{{find}}/{{replace}}/g' {{filename}}`
- Replace all occurrences of an extended regular expression in a file:
`sed -E 's/{{regex}}/{{replace}}/g' {{filename}}`
- Replace all occurrences of multiple strings in a file:
`sed -e 's/{{find}}/{{replace}}/g' -e 's/{{find}}/{{replace}}/g' {{filename}}`