grep -inr command

The grep -inr command is a combination of several grep options used to search for a string in files and directories recursively. Here's a breakdown:

Syntax

grep -inr "pattern" /path/to/search

Options explained:

• -i → Ignore case (case-insensitive search)

• -n → Show line numbers in the output

• -r → Recursive search through directories

Example:

 

grep -inr "error" /var/log

This will search for the word "error" (case-insensitively) in all files under /var/log, displaying line numbers and filenames.

Sample output:

 

/var/log/syslog:103:error reading file /var/log/syslog:205:Error occurred while starting service

Let me know if you want to add more filters, like file extensions (--include="*.log") or excluding certain directories (--exclude-dir="tmp").