A script uses cat /var/log/syslog | grep 'fail' but returns no results. You know there are failures logged. What is the problem?

medium📝 Debug Q7 of 15

Linux CLI - System Administration

A script uses cat /var/log/syslog | grep 'fail' but returns no results. You know there are failures logged. What is the problem?

AThe grep pattern is case-sensitive and logs use 'Fail' or 'FAIL'

Bcat cannot read syslog

Cgrep does not work with piped input

DThe syslog file is corrupted

Step-by-Step Solution

Solution:

Step 1: Analyze grep pattern sensitivity
grep is case-sensitive by default, so 'fail' won't match 'Fail' or 'FAIL'.
Step 2: Check command pipeline validity
cat can read syslog if permissions allow, and grep works with piped input. Corruption is less likely if file is readable.
Final Answer:
The grep pattern is case-sensitive and logs use 'Fail' or 'FAIL' -> Option A
Quick Check:
grep needs -i for case-insensitive search [OK]

Quick Trick: Add -i to grep for case-insensitive matching [OK]

Common Mistakes:

Master "System Administration" in Linux CLI

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More Linux CLI Quizzes