Phase 1 / 11 · Trips 1–15

Linux CLI Fundamentals

Navigate Linux, understand the filesystem, and manipulate files confidently.

Walkthroughs planned

The path begins here. No Linux command-line experience is assumed.

1. Trip 1Need to know where I amUse pwd, ls, and cd →
   Learning goal·Not yet practiced
2. Trip 2Need to create files and directoriesUse mkdir, touch, and rmdir →
   Learning goal·Not yet practiced
3. Trip 3Need to copy and move filesUse cp, mv, and rm →
   Learning goal·Not yet practiced
4. Trip 4Need to inspect file contentsUse cat, less, head, and tail →
   Learning goal·Not yet practiced
5. Trip 5Need to understand file pathsWork with absolute paths, relative paths, . and .. →
   Learning goal·Not yet practiced
6. Trip 6Need to find filesUse find and filename patterns →
   Learning goal·Not yet practiced
7. Trip 7Need to search file contentsUse grep and regular expressions →
   Learning goal·Not yet practiced
8. Trip 8Need to combine commandsUse pipes and tee →
   Learning goal·Not yet practiced
9. Trip 9Need to redirect command outputUse >, >>, and 2> →
   Learning goal·Not yet practiced
10. Trip 10Need to understand command failuresInspect exit codes with $? →
    Learning goal·Not yet practiced
11. Trip 11Need to get command helpUse man, --help, and type →
    Learning goal·Not yet practiced
12. Trip 12Need to understand file permissionsUse ls -l, chmod, and chown →
    Learning goal·Not yet practiced
13. Trip 13Need to understand users and groupsUse id, whoami, and groups →
    Learning goal·Not yet practiced
14. Trip 14Need temporary administrator accessUse sudo safely →
    Learning goal·Not yet practiced
15. Trip 15Need to compress and extract filesUse tar, gzip, and unzip →
    Learning goal·Not yet practiced