Admin: Created page with "Search a file for a pattern

 grep pattern file

Case insensitive search (with line numbers)

 grep -in pattern file

Case insensitive search that igno..."

2019-08-20T17:45:47Z

Created page with "Search a file for a pattern <pre> grep pattern file </pre> Case insensitive search (with line numbers) <pre> grep -in pattern file </pre> Case insensitive search that igno..."

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Search a file for a pattern

<pre>
grep pattern file
</pre>

Case insensitive search (with line numbers)

<pre>
grep -in pattern file
</pre>

Case insensitive search that ignores binary files (with line numbers):

<pre>
grep -I -in pattern file
</pre>

Recursively grep for string <pattern> in folder:

<pre>
grep -R pattern folder
</pre>

Read search patterns from a file (one per line)

<pre>
grep -f pattern_file file
</pre>

Find lines NOT containing pattern

<pre>
grep -v pattern file
</pre>

You can grep with regular expressions

Match lines starting with 00

<pre>
grep "^00" file
</pre>

Find IP address:

<pre>
grep -E "[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}" file
</pre>

Find all files which match {pattern} in {directory}

This will show: "file:line my research"

<pre>
grep -rnw 'directory' -e "pattern"
</pre>

Exclude grep from your grepped output of ps.

Add [] to the first letter. Ex: ssh -> [s]sh

<pre>
ps aux | grep '[h]ttpd'
</pre>

Colour in red {bash} and keep all other lines

<pre>
ps aux | grep -E --color 'bash|$'
</pre>

Grep - Revision history

Admin: Created page with "Search a file for a pattern
grep pattern file
Case insensitive search (with line numbers)
grep -in pattern file
Case insensitive search that igno..."