The next time you start a new session to start working, you’ll have to set up the ATLAS software environment again:
setupATLAS
Then navigate to the directory where you originally set up your release
(where .asetup.save exists) and set up the same analysis release:
cd <release setup directory>
asetup --restore
The script will automatically set up the same release as you previously
defined in that directory. The --restore option restores the previous setup.
See this page
for more information. Note that if you use a locally compiled
release, you should use the instructions from that
section.
The build directory will be introduced later, but you will also need to
call source x86_64*/setup.sh from your build directory on every login.