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various fixes and tweaks to sed

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- don't use g in all examples
- fix option for extended regex (-E is in grep :))
- spell out the -i option and remove a stray `''` from that command
- use the term "expressions" in the example using -e
This commit is contained in:
Waldir Pimenta 2015-08-20 16:59:41 +01:00
parent 5d3143bbf5
commit 0348a644de
1 changed files with 7 additions and 7 deletions
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14
pages/common/sed.md
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@ -2,21 +2,21 @@
> Run replacements based on regular expressions
- replace all occurrences of a string in a file, and print the result
- replace the first occurrence of a string in a file, and print the result
`sed 's/{{find}}/{{replace}}/g' {{filename}}`
`sed 's/{{find}}/{{replace}}/' {{filename}}`
- replace all occurrences of a string in a file, and overwrite the file
- replace all occurrences of a string in a file, overwriting the file
contents
`sed -i '' 's/{{find}}/{{replace}}/g' {{filename}}`
`sed --in-place 's/{{find}}/{{replace}}/g' {{filename}}`
- replace all occurrences of an extended regular expression in a file
`sed -E 's/{{regex}}/{{replace}}/g' {{filename}}`
`sed -r 's/{{regex}}/{{replace}}/g' {{filename}}`
- replace all occurrences of multiple strings in a file
- apply multiple find-replace expressions to a file
`sed -e 's/{{find}}/{{replace}}/g' -e 's/{{find}}/{{replace}}/g' {{filename}}`
`sed -e 's/{{find}}/{{replace}}/' -e 's/{{find}}/{{replace}}/' {{filename}}`