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How can I list the WM manager sessions available from the command line? I want to know what sessions are available to pass to thr lightdm-set-defaults utility.

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up vote 3 down vote accepted

For each session there's a *.desktop file in /usr/share/xsessions/. The session names used by lightdm are the file names without the .desktop.

You can list them using something like

ls /usr/share/xsessions/*.desktop | sed -re's:.*/([^.]+)\..*:\1:'

To get the names as displayed by the GUI use

awk -F= '/^Name=/ {print $2}'  /usr/share/xsessions/*.desktop
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