Linux CLI - System Administration
You run
grep error /var/log/syslog but get no output, even though you expect errors. What is a likely cause?You run grep error /var/log/syslog but get no output, even though you expect errors. What is a likely cause?
medium📝 Debug Q6 of 15
Step-by-Step Solution
Solution:
Step 1: Check grep case sensitivity
By default, grep is case-sensitive. Searching for 'error' won't match 'Error' or 'ERROR'.Step 2: Consider other causes
While syslog could be empty or require sudo, the most common cause is case mismatch. grep is usually installed on Linux.Final Answer:
The search is case-sensitive and errors are capitalized -> Option DQuick Check:
grep is case-sensitive by default [OK]
Quick Trick: Use grep -i for case-insensitive search [OK]
Common Mistakes:
- Ignoring case sensitivity in grep
- Assuming syslog is always empty
- Thinking grep might be missing
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