What this snippet does
On a directory the execute bit means traverse, so removing it blocks access to everything inside.
Expected output
ls: cannot access '/srv/app': Permission denied
Why practise typing this
Typing permissions & ownership code builds muscle memory for the symbols and indentation Linux uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
More Linux practice
- Making a script executablePermissions & Ownership · beginner
- Octal permission modesPermissions & Ownership · intermediate
- 777 is almost never the fixPermissions & Ownership · intermediate
- Changing owner and groupPermissions & Ownership · intermediate
- Default permissions for new filesPermissions & Ownership · advanced
- Finding setuid binariesPermissions & Ownership · advanced