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