Difference between revisions of "Linux/Unix:Find and Replace"
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m (Hdridder moved page Bash:Find and Replace to Linux/Unix:Find and Replace) |
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| − | [[Category: | + | [[Category:Linux/Unix]] |
==cat== | ==cat== | ||
| Line 13: | Line 13: | ||
==tr== | ==tr== | ||
| − | ;tr "[:upper:]" "[:lower:]" | + | ;tr <nowiki>"[:upper:]" "[:lower:]"</nowiki> |
| − | ;tr "[abc]" "[xyz]" | + | ;tr <nowiki>"[abc]" "[xyz]"</nowiki> |
:Transtlate, make all lowercase | :Transtlate, make all lowercase | ||
:replace all a's with y, all b's with y and all c's with z, works from stdin to stdout. All sort of translations can be done | :replace all a's with y, all b's with y and all c's with z, works from stdin to stdout. All sort of translations can be done | ||
| Line 24: | Line 24: | ||
==sed== | ==sed== | ||
| + | |||
| + | ;s/pattern/newstring/ | ||
| + | :In each line replace first occurrence of pattern with newstring. /g at the end replaces all occurrences of pattern. | ||
| + | |||
| + | ;s/pattern/d | ||
| + | :Delete each line matching pattern. | ||
==awk== | ==awk== | ||
==read== | ==read== | ||
Revision as of 08:33, 22 May 2019
cat
head tail
fold
strings
more less
tr
- tr "[:upper:]" "[:lower:]"
- tr "[abc]" "[xyz]"
- Transtlate, make all lowercase
- replace all a's with y, all b's with y and all c's with z, works from stdin to stdout. All sort of translations can be done
- tr -d <char>
- Delete <char> from standard input
grep
sed
- s/pattern/newstring/
- In each line replace first occurrence of pattern with newstring. /g at the end replaces all occurrences of pattern.
- s/pattern/d
- Delete each line matching pattern.