sed

Linux · Text · available in the simulator

What it does

Processes and transforms text using expressions.

Syntax

sed [opciones] 'script' [archivo...]

Options and parameters

-e
Adds a command to the script.
sed -e 's/a/b/' -e 's/c/d/' f.txt
-i
Edits files in place; supports an optional backup suffix.
sed -i.bak 's/viejo/nuevo/g' f.txt
-n
Suppresses automatic printing of each line; typically used with the p command.
sed -n '5,10p' f.txt
-E
Uses extended regular expressions.
s///g
Replaces all occurrences in the line, not just the first.
sed 's/error/AVISO/g' log.txt

Usage examples

sed 's/foo/bar/g' archivo
sed -n '1,10p' archivo
sed -e 's/a/b/' -e 's/c/d/' f.txt
sed -i.bak 's/viejo/nuevo/g' f.txt
sed -n '5,10p' f.txt
sed 's/error/AVISO/g' log.txt

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