tlmgr-check:tldr:1c204

The command "tlmgr check all" is used in the TeX Live distribution to check for any issues or inconsistencies in all installed packages.

Here's a breakdown of what this command does:

• "tlmgr" is a command-line tool in TeX Live used for package management and updates.
• "check" is one of the available functions in tlmgr, which allows you to check the integrity of packages.
• "all" is an argument for the check command, specifying that you want to check all installed packages.

When you run "tlmgr check all", TeX Live will examine all the installed packages on your system and verify if any issues exist. This may include checking for missing or corrupted files, incorrect dependencies, or other package-related problems.

Running this command periodically can help ensure that your TeX Live installation is in good condition and that all the packages are working correctly. If any issues are detected, you may be advised to update or reinstall specific packages to maintain a stable TeX environment.