tlmgr-search
Search for TeX Live packages using (Perl) regular expressions.
TLDR
Search for a package name and descriptions of all locally installed packages from a specific regular expression
$ tlmgr search "[regular_expression]"
Search for all file names of all locally installed packages from a regular expression
$ tlmgr search --file "[regular_expression]"
Search for all file names, package names, and descriptions of all locally installed packages from a regular expression
$ tlmgr search --all "[regular_expression]"
Search the TeX Live database, instead of the local installation
$ tlmgr search --global "[regular_expression]"
Restrict the matches for package names and descriptions (but not for file names) to whole words
$ tlmgr search --all --word "[regular_expression]"
