ln -s /path/to/source/file.txt ./destination_file.txt
zcat zippedupfile.gz | head
bcto do precision calculations like so
bc -l <<< "sqrt(2)-5/7+18"
ITS-R has a webpage for statistics where you can see the load on the cluster but more importantly you can see your completed jobs.
On the left hand menu there is a View your job detail in which you can see all the jobs ran on the cluster recently.