Display all available packages that matches any of the regexps.
Refresh the available packages.
Recovers from an inconsistent universe
Execute a command in a subshell with the right environment variables.
Display the list of repositories.
List the available compiler descriptions.
Display the name of the current compiler.
List the current pinned packages.
Call an unsafe function while taking the global lock.
Call an unsafe function while taking the current switch lock.
Call an unsafe function while checking that no lock is already held.