Difference between revisions of "Grep"

From wikieduonline
Jump to navigation Jump to search
Line 58: Line 58:
 
* [[Amazon CloudWatch Logs Insights]]
 
* [[Amazon CloudWatch Logs Insights]]
 
* [[Logs]]: [[ElasticSearch]] and [[OpenSearch]]
 
* [[Logs]]: [[ElasticSearch]] and [[OpenSearch]]
 +
* <code>[[logcli]]</code> for [[Loki]]
 
<pre>
 
<pre>
 
  [[:alpha:]]
 
  [[:alpha:]]

Revision as of 09:39, 3 January 2024

grep[1] is a command for searching plain text data sets for lines that match a regular expression.


~/.bash_profile

alias grep='grep --color=auto'

Common options

-o, --only-matching
-a, --text equivalent to --binary-files=text
-i
-r
-v
-w

Examples

Search for a pattern: TEXT="OTHER_TEXT"

Search for a pattern: TEXT="OTHER _TE XT" including spaces:

  • grep -o 'TEXT="[ a-zA-Z0-9_]*"' index.html

Search in hidden folders:

  • grep -ir your-search * .[^.]*

End of line:

  • grep your-search$

Add line:

  • grep -qxF 'your text "additional text"' yourfile.txt || echo 'your text "additional text"' >> yourfile.txt


Related

 [[:alpha:]]
 [[:alnum:]]
[[:digit:]]

See also

  • http://man7.org/linux/man-pages/man1/grep.1p.html
  • Advertising: