Short list of basic UNIX commands and the CCR reference
The CCR Linux command reference card has a list of commonly used Unix commands with examples.
The CCR cluster is accessed through a command line
There are a few basic UNIX commands that are helpful in getting
started on the cluster.
The man command will give usage information for any UNIX command.
Press space bar or enter to page through man page.
Type q to quit.
[cdc@u2:~]$ man ls
ls - list directory contents
ls [OPTION]... [FILE]...
List information about the FILEs (the current directory by default).
Sort entries alphabetically if none of -cftuvSUX nor --sort.
Mandatory arguments to long
options are mandatory for short
do not ignore entries starting with .
Modules are used to set the necessary paths and variables for an
The new IBM GPFS storage solution is in production. Please
replace /ifs, /panfs and /panasas with /gpfs in your scripts or
anywhere on this website that you see /ifs, /panfs, or /panasas
We're now using the SLURM scheduler. If you need to update your job scripts from PBS format, this is a great cheatsheet for comparing commands between the two schedulers. Click here for more info about using SLURM at CCR.