tlmgr-check
Check the consistency of a TeX Live installation. tldr-pages
On several platforms
Several platforms
Check the consistency of the whole TeX Live installation
tlmgr check allIdentifyCheck the consistency of the whole TeX Live information in verbose mode
tlmgr check all -vIdentifyCheck for missing dependencies
tlmgr check dependsIdentifyCheck if all TeX Live executables are present
tlmgr check executesIdentifyCheck if all files listed in the local TLPDB are present
tlmgr check filesIdentifyCheck for duplicate filenames in the runfiles sections
tlmgr check runfilesIdentify