The "all" command:

Usage: fossil all (list|ls|pull|push|rebuild|sync)

The ~/.fossil file records the location of all repositories for a
user.  This command performs certain operations on all repositories
that can be useful before or after a period of disconnected operation.

On Win32 systems, the file is named "_fossil" and is located in
%LOCALAPPDATA%, %APPDATA% or %HOMEPATH%.

Available operations are:

   ignore     Arguments are repositories that should be ignored
              by subsequent list, pull, push, rebuild, and sync.

   list | ls  Display the location of all repositories.
              The --ckout option causes all local checkouts to be
              list instead.

   changes    Shows all local checkouts that have uncommitted changes

   pull       Run a "pull" operation on all repositories

   push       Run a "push" on all repositories

   rebuild    Rebuild on all repositories

   sync       Run a "sync" on all repositories

Respositories are automatically added to the set of known repositories
when one of the following commands are run against the repository: clone,
info, pull, push, or sync.  Even previously ignored repositories are
added back to the list of repositories by these commands.