What this snippet does
A hold stops unattended upgrades moving a version you have pinned deliberately.
Expected output
postgresql-16
Why practise typing this
Typing package management 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
- Installing a packagePackage Management · beginner
- Finding which package owns a filePackage Management · intermediate
- Listing a package's filesPackage Management · intermediate
- remove leaves configuration behindPackage Management · intermediate
- Installing on RHEL familyPackage Management · intermediate
- Checking what will be upgradedPackage Management · intermediate