Screen – EECS Support Pages Skip to main content Toggle navigation EECS Support Pages Home Facilities Student Labs Drop-in Lab Desktop Computers Servers Compute Servers Fileservers Virtual Machines Scratch space Meeting Rooms Services Accounts EECS Username Guest Account Temporary account Disk Quota Printing Staff Printing Student Printing Remote Access Distance Learning Student access RDP (Remote Desktop) SSH VPN SFTP (Secure FTP) SSH Tunnelling Windows Filesharing (Samba) Setting up a SOCKS proxy Web Services Personal Webpages Web Servers Web Policies EECS Mailing Lists Room Booking Online Exam Research Compute Servers GPU utilisation (Live) Joint-Programme (JP) Cluster (HPC) Cluster: CST Studio Cluster: Comsol Cluster: Matlab Cluster: MPI Software Anaconda Caffe2 Environment modules Labview LaTeX MATLAB oXygen XML Editor Python Teaching Software 2018/19 Tensorflow Theano Visual Paradigm Tools Screen FAQ IT regulations. News Screen January 13, 2022January 13, 2022 Branavan Santhakumar Software Table of Contents Intro Running/Detaching a Screen Session Managing a Screen Session Disclaimer Intro Screen is a tool you can use to keep a session open on a server while you’re not logged in, this allows you to run long running jobs in the background without the fear of it exiting once you do eventually log off, are kicked off due to a network issue, etc. Running/Detaching a Screen Session To open a screen session all you have to is type ‘screen’ on the command line, this will open a new interactive session. $ screen All you need to do now is run your job and once that’s done you need to detach the screen, this will cause it to run in the background uninterrupted, to do this all you need to do is press ctrl+a d – (which is read ctrl and the letter ‘a’ together, and d after letting go of ctrl and ‘a’). This will lead you back into your previous non-screen session. Now you can exit the server and the screen session will still be running. Managing a Screen Session Now to manage your screen session all you need to is type the following ‘screen -ls’ $ screen -ls
There is a screen on:
2431.pts-15.host (Detached)
1 Socket in /var/run/screen/S-user. This will list all the current Screen sessions you have opened, to reattach on to the session again, all you need to do is type ‘screen -r’ if there is one screen session open or you can be more specific (helpful when you have multiple screen sessions open) ‘screen -r 2431’ $ screen -ls
There are screens on:
3273.pts-15.host (Detached)
2431.pts-15.host (Detached)
2 Sockets in /var/run/screen/S-user.
$ screen -r 2431
Killing a Screen Session To kill a screen session you can either exit from the screen session itself or type the following ‘kill 2431’ where 2431 is the process number of the screen session $ screen -ls
There are screens on:
3273.pts-15.host (Detached)
2431.pts-15.host (Detached)
2 Sockets in /var/run/screen/S-user.
$ kill 2431
$ screen -ls
There is a screen on:
3273.pts-15.host (Detached)
1 Socket in /var/run/screen/S-user. Disclaimer Always make sure to kill screen sessions if they’re not in use or it affects the server’s performance, and do not run this on the jump servers. Post navigation Latest NVIDIA Drivers, CUDA and cuDNN versions (March 2021) Search for: Recent articles Screen Latest NVIDIA Drivers, CUDA and cuDNN versions (March 2021) AppsAnywhere – How To Access Rgate Security actions on unprotected SSH Keys (Staff/PhD) COPYRIGHT © 2019 | EECS SUPPORT PAGES | Theme by Colorlib Powered by WordPress
