Produce /tmp/levels.txt with each log level and its count, sorted by count descending.
From `/home/user/data/log_levels.txt`, build a sorted-by-count frequency table and save it to `/tmp/levels.txt`. The format is the standard `uniq -c` output (count, then a space, then the level), highest count first.
Expected:
```
4 INFO
3 ERROR
2 WARN
1 DEBUG
```
Pipeline: `sort … | uniq -c | sort -rn > /tmp/levels.txt`.Sign in to save your code and track progress across devices.
