Here's a bunch of random tricks I use, some SLAC-related, but many are general to ATLAS.
If you need a particular database release, for running over data typically, you can set the database release you want to use by adding to your cmthome/requirements file:
set DBRELEASE_OVERRIDE 7.1.1
I still get a "Word too long" message sometimes after setting up an ATLAS release. It seems to be from the PATH variable getting over a certain length that even bash can't handle. You can fix it with this, which turns all the /afs/slac.stanford.edu to just /afs/slac, which works just as well:
export PATH=`echo $PATH | sed s%.stanford.edu%%g`
To kill ALL your batch jobs at SLAC:
for j in `bjobs | cut -f 1 -d " "`; do bkill $j; echo $j; done
To run eclipse:
unset _JAVA_OPTIONS /afs/slac.stanford.edu/g/atlas/work/a/ahaas/eclipse/eclipse
There's a lot more space in /nfs/slac/g/atlas/u01/users:
mkdir /nfs/slac/g/atlas/u01/users/<username> cd; ln -s /nfs/slac/g/atlas/u01/users/<username> nfs2