sed

Filter and transform text as a stream editor.

Last updated: 2026-07-05 Report error

Syntax

$sed [OPTIONS] COMMAND [FILE...]

Examples

$sed 's/old/new/g' file.txt

Examples

$sed -i 's/old/new/g' file.txt

Typical use cases

Replace text

sed 's/old/new/' file.txt

Edit in place

sed -i 's/old/new/' file.txt

Note Use -i carefully; it edits files in place.

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