[Solved] What does the command grep -r 'error' /var/log do? — Ans: Searches recursively for the word 'error' inside all files in /var/log and its... | Linux CLI

Linux CLI - Searching and Finding

What does the command grep -r 'error' /var/log do?

ASearches recursively for the word 'error' inside all files in /var/log and its subfolders.

BSearches only the /var/log folder for files named 'error'.

CDeletes all files containing the word 'error' in /var/log.

DLists all files in /var/log that have the word 'error' in their name.

Step-by-Step Solution

Solution:

Step 1: Understand the grep -r option
The -r flag tells grep to search recursively inside all files in the given directory and its subdirectories.
Step 2: Analyze the command arguments
The command searches for the text 'error' inside all files under the /var/log directory and its subfolders.
Final Answer:
Searches recursively for the word 'error' inside all files in /var/log and its subfolders. -> Option A
Quick Check:
grep -r means recursive search [OK]

Quick Trick: Remember: -r means search inside folders and subfolders [OK]

Common Mistakes:

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