Setup environment

ssh pslogin
ssh psananeh
# or psanafeh for cxi, sxr, and mec
cd <your-directory>
sit_setup

Pedestals

Configuration file for psana with name for example: ana-xpp50312/psana-xpp50312-r0082-pedestals.cfg

...

Run psana with this configuration file: qt.

psana -c ana-xpp50312/psana-xpp50312-r0082-pedestals.cfg

In a few seconds this command produce two text files with one-dimensional (143560) array for CSPad2x2, which assumes physical shape (185,388,2).
Using, for example, a simple python script this files may be plotted

...