You want to delete files in /backup that were modified more than 10 days ago but keep files modified within 10 days. Which command correctly does this safely?

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Linux CLI - Searching and Finding

You want to delete files in /backup that were modified more than 10 days ago but keep files modified within 10 days. Which command correctly does this safely?

Afind /backup -mtime +10 -delete

Bfind /backup -mtime +10 -exec rm {} \;

Cfind /backup -mtime 10 -delete

Dfind /backup -mtime -10 -exec rm {} \;

Step-by-Step Solution

Solution:

Step 1: Identify files older than 10 days
-mtime +10 selects files modified more than 10 days ago.
Step 2: Use safe deletion option
-delete deletes files directly; it's safer and simpler than -exec rm which can be error-prone.
Step 3: Check other options
-mtime -10 deletes recent files (wrong), -mtime 10 deletes files exactly 10 days old (not older), and -exec rm works but less safe than -delete.
Final Answer:
find /backup -mtime +10 -delete -> Option A
Quick Check:
Use +N with -delete to remove files older than N days [OK]

Quick Trick: Use -mtime +N with -delete to remove files older than N days [OK]

Common Mistakes:

Using -mtime -10 deletes recent files instead of old
Using -mtime 10 deletes only files exactly 10 days old
Using -exec rm without care can cause errors

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You want to delete files in /backup that were modified more than 10 days ago but keep files modified within 10 days. Which command correctly does this safely?

Step 1: Identify files older than 10 days

Step 2: Use safe deletion option

Step 3: Check other options

Final Answer:

Quick Check:

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