wmctrl
CLI for X Window Manager.
TLDR
List all windows, managed by the window manager
$ wmctrl -l
Switch to the first window whose (partial) title matches
$ wmctrl -a [window_title]
Move a window to the current workspace, raise it and give it focus
$ wmctrl -R [window_title]
Switch to a workspace
$ wmctrl -s [workspace_number]
Select a window and toggle fullscreen
$ wmctrl -r [window_title] -b toggle,fullscreen
Select a window a move it to a workspace
$ wmctrl -r [window_title] -t [workspace_number]
