tlmgr-check:tldr:492c1
The command "tlmgr check files" is used in the TeX Live Manager (tlmgr) utility to check the consistency and integrity of the installed TeX Live files.
When you run this command, tlmgr examines the installation directory and verifies the integrity of each installed TeX Live package against its corresponding checksums. It checks for any modifications, deletions, or inconsistencies in the installed files.
This command is useful in troubleshooting potential problems with TeX Live installations, such as missing or corrupted files. It ensures that the installed files are complete and not modified since the initial installation or update.
The output of this command will provide a detailed report of any issues found with the installed files, including missing or modified files, incorrect checksums, or other inconsistencies. This information can help you identify and fix any problems with your TeX Live installation.