Clear it in 3 steps
Start the environment
Investigate the target
Submit the flag
All challengesIn progress
Linux-01. Grep the Needle Out of the Log Pile
Mission
Under /var/log/app there are many date-stamped log files, and the flag is hidden in a single ERROR line among them. Use grep or find to locate that line.
Not started
Hints
Hint 1Show
grep -r can recursively search an entire directory
Hint 2Show
Try filtering by log level (ERROR/DEBUG/INFO)
Hint 3Show
grep -rn also shows the filename and line number