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From the headnode you may list files on a compute node(eg. node14) as follows:
-bash-3.2$ ls -l /cluster/scratch/node14/utln/

X based graphics FAQs

What is an X Server:

This is a program that runs on your workstation/desktop OS that 'listens' for X-Window transmissions sent from the cluster and redisplays these on your workstation. These transmissions are generated by an application running on a host that you are connected to. For example, if you intend to use Ansys on the cluster, you need to display the Ansys gui interface locally on your desktop.

What X server is needed for WinXP desktops?

There are many free and commercial X server programs. UIT recommends Cygwin. Commercial options include Exceed, XWin32, and others...

Where do I get Cygwin?

A&S Cygwin installation documentation can be obtained here.

What Cygwin programs do I install?

Install base Cygwin, OpenSSH, and OpenGL at a minimun.

How do I connect to the cluster using Cygwin?

Connect with ssh to the head node of the cluster:

> ssh -Y -C yourusername@cluster.uit.tufts.edu

How can I make sure Cygwin is working with the cluster?

To test the cygwin X server,try a simple cluster-side X-window application:

> xclock

A clock should appear on your desktop.

What X server is needed for a Mac?

An X server is either provided with Mac OS X (X11 in newer versions) or when you install the Mac X developement tools (older versions).

What X server is needed for a desktop linux user?

Linux distributions come with Xwindows which provides X server support.

I get an error about Mathematica missing fonts,etc... What does this mean?

The cluster does not provide a Font Server supporting Mathematica font sets. Whereas a local install of Mathematica on your desktop includes this font set. Remote users need to provide access to the fonts locally. The easy way is to obtain the Mathematica helper program called, Mathematica Player. You may download this from the vendor website. Before you start Mathematica on the cluster for display on your computer, start the helper program locally. This will provide the font support.Click here

Application specific Information FAQs

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Action Needed

Command

Usage

Display contents of a file

cat

cat filename

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Copy a file

cp

cp [-op] source destination

]]></ac:plain-text-body></ac:structured-macro>

Change file protection

chmod

chmod mode filename or
chmod mode directory_name

Change working directory

cd

cd pathname

Display file (/w pauses)

more

more filename

Display first page of text

less

less filename

Display help

man

man command or
man -k topic

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="eab29b0f2d3d17fc-51119d6a-48a5496a-8f75b29a-1187b162a963eec3235e9a23"><ac:plain-text-body><![CDATA[

Rename a file

mv

mv [-op] filename1 filename2 or
]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="29c8c45f830310f5-ca650d9f-47ff4292-9c2c8359-0a0854e201a99dcd81809789"><ac:plain-text-body><![CDATA[mv [-op] directory1 directory2 or
]]></ac:plain-text-body></ac:structured-macro>
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="63971f492bc8738d-249a2ae2-4c9f4458-a7918d5a-c6cb0b5925da3eef04b8e32b"><ac:plain-text-body><![CDATA[mv [-op] filename directory

]]></ac:plain-text-body></ac:structured-macro>

Compare file

diff

diff file1 file2

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="b1717f0bf6a5f1de-331bfc4b-4a934b4f-a17dbe1e-266ef349e35845a5aa70c0ad"><ac:plain-text-body><![CDATA[

Delete file

rm

rm [-op] filename

]]></ac:plain-text-body></ac:structured-macro>

Create a directory

mkdir

mkdir directory_name

Delete a directory /w files in it

rmdir -r

rm -r directory_name

Delete a directory

rmdir

rmdir directory_name

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="f885ef71e8163550-0185d30b-465c43b5-a447a17a-1d5e165d8d63a2075b9b81d0"><ac:plain-text-body><![CDATA[

Display a list of files

ls

ls [-op] directory_name

]]></ac:plain-text-body></ac:structured-macro>

Change the password

passwd

passwd

Display a long list (details)

ls -l

ls -l directory_name

Display current directory

pwd

pwd

...

Action Needed

Command

Usage

System verification

lsid

lsid

Display load levels

lsmon

lsmon

Display hosts

lshosts

lshosts

Summarize past usage

bacct

bacct or
bacct job ID #

Display hosts

bhosts

bhosts

View current jobs

bjobs

bjobs or
bjobs job ID #

<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="a8470119cd332ffe-7d1446d0-44d14ba5-ac82b83b-1043bced6d70c0f6f4620f2c"><ac:plain-text-body><![CDATA[

Run LSF batch job

bsub

bsub [-op] filename

]]></ac:plain-text-body></ac:structured-macro>

Kill a job

bkill

bkill job id #

Review/select queue

bqueues

bqueues or
bqueues queue_name

Suspend a job

bstop

bstop job ID #

Changes job order (new or pending)

btop

btop job ID | "job_ID"(index_list)"

Resume suspended jobs

bresume

bresume job ID #

View job history

bhist

bhist job ID #

...