mirror of https://github.com/CrimsonTome/tldr.git
34 lines
1.1 KiB
Markdown
34 lines
1.1 KiB
Markdown
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# sed
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> Edit text in a scriptable manner.
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> See also: `awk`, `ed`.
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> More information: <https://man.netbsd.org/sed.1>.
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- Replace all `apple` (basic regex) occurrences with `mango` (basic regex) in all input lines and print the result to `stdout`:
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`{{command}} | sed 's/apple/mango/g'`
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- Execute a specific script [f]ile and print the result to `stdout`:
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`{{command}} | sed -f {{path/to/script.sed}}`
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- Delay opening each file until a command containing the related `w` function or flag is applied to a line of input:
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`{{command}} | sed -fa {{path/to/script.sed}}`
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- Turn on GNU re[g]ex extension:
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`{{command}} | sed -fg {{path/to/script.sed}}`
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- Replace all `apple` (extended regex) occurrences with `APPLE` (extended regex) in all input lines and print the result to `stdout`:
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`{{command}} | sed -E 's/(apple)/\U\1/g'`
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- Print just a first line to `stdout`:
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`{{command}} | sed -n '1p'`
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- Replace all `apple` (basic regex) occurrences with `mango` (basic regex) in a specific file and overwrite the original file in place:
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`sed -i 's/apple/mango/g' {{path/to/file}}`
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