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> Edit text in a scriptable manner.
Replace the first occurrence of a regular expression in each line of a file, and print the result:
sed 's/{regular_expression}/{replace}/' {filename}
Replace all occurrences of an extended regular expression in a file, and print the result:
sed -r 's/{regular_expression}/{replace}/g' {filename}
Replace all occurrences of a string in a file, overwriting the file (i.e. in-place):
sed -i 's/{find}/{replace}/g' {filename}
Replace only on lines matching the line pattern:
sed '/{line_pattern}/s/{find}/{replace}/' {filename}
Delete lines matching the line pattern:
sed '/{line_pattern}/d' {filename}
Print the first 11 lines of a file:
sed 11q {filename}
Apply multiple find-replace expressions to a file:
sed -e 's/{find}/{replace}/' -e 's/{find}/{replace}/' {filename}
Replace separator `/` by any other character not used in the find or replace patterns, e.g. `#`:
sed 's#{find}#{replace}#' {filename}
> Copyright © 2014—present the tldr-pages team and contributors.
> This work is licensed under the Creative Commons Attribution 4.0 International License (CC-BY).
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