lib for gnu-screen: creates/close/list/log sessions, injects commands...
CAUTION: this project is not maintained anymore as it’s maintainer don’t use it anymore (and switched to tmux). If you contribute a bit, you may reclaim this project.
screenutils is a set of classes that should help handling gnu-screen windows.
It requires gnu-screen binary installed (named screen and in your path) to work.
Feel free to report any modification you made, the whole code source is available under the terms of the GPLv2 but I think about using a more permissave license (WTFPL).
Example in a python console:
>>> from screenutils import list_screens, Screen >>> list_screens()  >>> s = Screen("session1",True) >>> # funky prompts could reduce log visibility. Use sh or bash for best results >>> s.send_commands('bash') >>> s.enable_logs() >>> s.send_commands("df") >>> print next(s.logs) df Filesystem 1K-blocks Used Available Use% Mounted on /dev/sda6 20161172 8084052 11052980 43% / none 1505916 304 1505612 1% /dev none 1512676 936 1511740 1% /dev/shm none 1512676 380 1512296 1% /var/run none 1512676 0 1512676 0% /var/lock none 1512676 0 1512676 0% /lib/init/rw none 20161172 8084052 11052980 43% /var/lib/ureadahead/debugfs /dev/sda7 403567768 196284216 186783420 52% /home popi@popi-laptop:~/Dev/github/screenutils$ >>> s.disable_logs() >>> s = None >>> s = Screen("session1") >>> s.exists True >>> s2 = Screen("session2") >>> s2.exists False >>> s2.initialize() >>> s2.exists True >>> list_screens() [<Screen 'session2'>, <Screen 'session1'>] >>>
You could install screenutils from github, by doing the following:
$ pip install git+http://github.com/Christophe31/screenutils.git
Or by just using the packages published on Pypi, for instance with pip:
$ pip install screenutils
- screens listing
- screen session creation
- screen session closing
- screen code insertion
- screen monitoring/logging
- screen session sharing with unix users (see below)
- Screen(name, initialize=False) Create a new screen.
- name (required): The name associated with the screen.
- initialize: If True, creates a screen session if it does not exists.
- screen.id (property) the id of the screen as a string.
- screen.status (property) the status of the screen as a string.
- screen.exists (property) True if the screen exists (has been initialized)
- NOTE: .id, .status, .exists are all based off of the output of screen -ls
- screen.initialize Initialize a screen if does not exists yet. Equivalent to running screen -UR screen_name
- screen.enable_logs() turns Screen’s logging on. The Logfile’s name is automatically set to that of the Screen object.
- screen.logs A generator that acts like tailF on the logfile.
- screen.disable_logs() turns logging off.
- screen.kill() Quit the screen. Equivalent to running screen -x screen_name -X quit
- screen.detach() Detach from the screen.
- screen.send_commands(*commands) send bash commands to the screen.
- *commands the command(s) to run (as a string).
- screen.add_user_access(unix_user_name) Allow another user to access the screen.
- unix_user_name (required): the unix name of the user to add.
- *NOTE: to allow this feature, you will need to change some unix rights:
- sudo chmod +s /usr/bin/screen
- sudo chmod 755 /var/run/screen
- list_screens() list screens. Returns a list of Screen instances.
- ScreenNotFoundError: Raised when a screen wasn’t found.
This may not work properly with bpython.
- multi windows screen support
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