linux:shellcommands
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linux:shellcommands [2017/04/18 09:38] – [rsync] admin | linux:shellcommands [2022/10/29 16:15] (current) – external edit 127.0.0.1 | ||
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* original = a regular expression describing the word to replace (or just the word itself) | * original = a regular expression describing the word to replace (or just the word itself) | ||
* new = the text to replace it with | * new = the text to replace it with | ||
- | *g = global (i.e. replace all and not just the first occurrence) | + | * g = global (i.e. replace all and not just the first occurrence) |
- | Below are some basic examples: | + | Below are some basic examples |
- | * Example search | + | |
cat intro | cat intro | ||
+ | </ | ||
The Unix operating system. Unix system | The Unix operating system. Unix system | ||
- | + | </ | |
- | sed ' | + | * Substitute Unix with UNIX: <code bash> |
- | The UNIX operating system. Unix system | + | sed ' |
- | + | </ | |
- | sed --in-place ' | + | The UNIX operating system. Unix system</ |
- | + | * Substitute Unix with UNIX in file intro: <code bash> | |
- | sed ' | + | sed --in-place ' |
+ | </code> | ||
+ | * Substitute Unix with UNIX<code bash> | ||
+ | sed ' | ||
</ | </ | ||
* example with -n option< | * example with -n option< | ||
- | sed -n ' | + | sed -n ' |
- | => Just print the first 2 lines | + | * Just print lines containing UNIX: <code bash> |
sed -n '/ | sed -n '/ | ||
- | => Just print lines containing UNIX | + | </code> |
* example Deleting Lines< | * example Deleting Lines< | ||
sed ' | sed ' | ||
- | => Delete lines 1 and 2 | + | </ |
+ | * Delete all lines containing UNIX:< | ||
sed '/ | sed '/ | ||
- | => Delete all lines containing UNIX | + | </code> |
+ | * Delete all characters before string< | ||
+ | sed ' | ||
</ | </ | ||
==== awk ==== | ==== awk ==== |
linux/shellcommands.1492508291.txt.gz · Last modified: 2022/10/29 16:15 (external edit)