2013-12-11 10:50:11 +00:00
|
|
|
# sed
|
|
|
|
|
2018-06-26 16:19:31 +01:00
|
|
|
> Edit text in a scriptable manner.
|
2013-12-11 10:50:11 +00:00
|
|
|
|
2019-01-08 18:28:59 +00:00
|
|
|
- Replace the first occurrence of a regular expression in each line of a file, and print the result:
|
2013-12-11 10:50:11 +00:00
|
|
|
|
2019-01-08 18:28:59 +00:00
|
|
|
`sed 's/{{regex}}/{{replace}}/' {{filename}}`
|
2013-12-11 10:50:11 +00:00
|
|
|
|
2019-01-08 18:28:59 +00:00
|
|
|
- Replace all occurrences of an extended regular expression in a file, and print the result:
|
2016-02-27 13:23:24 +00:00
|
|
|
|
2016-04-21 19:13:01 +01:00
|
|
|
`sed -r 's/{{regex}}/{{replace}}/g' {{filename}}`
|
2016-02-27 13:23:24 +00:00
|
|
|
|
2016-01-21 12:02:00 +00:00
|
|
|
- Replace all occurrences of a string in a file, overwriting the file (i.e. in-place):
|
2013-12-11 10:50:11 +00:00
|
|
|
|
2015-11-23 15:05:25 +00:00
|
|
|
`sed -i 's/{{find}}/{{replace}}/g' {{filename}}`
|
2013-12-11 10:50:11 +00:00
|
|
|
|
2016-04-21 19:13:01 +01:00
|
|
|
- Replace only on lines matching the line pattern:
|
2013-12-11 10:50:11 +00:00
|
|
|
|
2016-08-08 08:09:34 +01:00
|
|
|
`sed '/{{line_pattern}}/s/{{find}}/{{replace}}/' {{filename}}`
|
2014-03-27 18:27:35 +00:00
|
|
|
|
2018-11-16 14:11:22 +00:00
|
|
|
- Delete lines matching the line pattern:
|
|
|
|
|
|
|
|
`sed '/{{line_pattern}}/d' {{filename}}`
|
|
|
|
|
2018-06-26 16:19:31 +01:00
|
|
|
- Print only text between n-th line till the next empty line:
|
|
|
|
|
|
|
|
`sed -n '{{line_number}},/^$/p' {{filename}}`
|
|
|
|
|
2016-01-21 12:02:00 +00:00
|
|
|
- Apply multiple find-replace expressions to a file:
|
2014-05-17 23:12:37 +01:00
|
|
|
|
2015-08-20 16:59:41 +01:00
|
|
|
`sed -e 's/{{find}}/{{replace}}/' -e 's/{{find}}/{{replace}}/' {{filename}}`
|
2016-04-10 20:18:24 +01:00
|
|
|
|
2016-04-21 19:11:33 +01:00
|
|
|
- Replace separator / by any other character not used in the find or replace patterns, e.g., #:
|
2016-04-10 20:18:24 +01:00
|
|
|
|
|
|
|
`sed 's#{{find}}#{{replace}}#' {{filename}}`
|
2018-08-22 22:26:12 +01:00
|
|
|
|
|
|
|
- Print only the `N`th line of a file:
|
|
|
|
|
|
|
|
`sed '{{N}}q;d' {{filename}}`
|