A quick guide to HTCondor

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Basic commands

Firstly, some basic HTCondor commands are as follows.

To submit a job, type:

condor_submit <file>

To list your running and idle jobs, type:


To list completed jobs, type:


For example, if you create a file called simplejob.sub containing the following [1], as well as a script called script.sh [2], you can submit it and should see:

-bash-4.1$ condor_submit simplejob.sub Submitting job(s). 1 job(s) submitted to cluster 91959.

The job will: - run the script "script.sh" with argument "10" - 100 MB of memory will be requested - the executable (script.sh in this case) will be automatically transferred to the worker nodes - stdout from the job will end up in the file job.91959.0.out (once it completes) - stderr from the job will end up in the file job.91959.0.err (once it completes) - the log file job.91959.0.log will give some information about the status of the job

Checking the status:

-bash-4.1$ condor_q

-- Schedd: lcgui03.gridpp.rl.ac.uk : <


91959.0 alahiff 2/26 13:08 0+00:00:07 R 0 0.0 script.sh 10

1 jobs; 0 completed, 0 removed, 0 idle, 1 running, 0 held, 0 suspended

 1 jobs; 0 completed, 0 removed, 0 idle, 1 running, 0 held, 0 suspended

Once the job is completed

-bash-4.1$ ls -lt *91959* -rw-r--r-- 1 alahiff esc 1032 Feb 26 13:09 job.91959.0.log -rw-r--r-- 1 alahiff esc 24 Feb 26 13:09 job.91959.0.out -rw-r--r-- 1 alahiff esc 0 Feb 26 13:08 job.91959.0.err

Note that with this example job description file, all files generated by the job will be automatically transferred back to the machine where you submitted the job (i.e. lcgui03 or lcgui04). You can prevent this from happening by adding:


If the job needs additional files, you can add a line something like this:

transfer_input_files = input1.dat,input2.dat

and they will be copied.

The official documentation is here:


Regards, Andrew.

[1] cmd=script.sh arguments=10 output=job.$(cluster).$(process).out error=job.$(cluster).$(process).err log=job.$(cluster).$(process).log should_transfer_files = YES when_to_transfer_output = ON_EXIT RequestMemory=100 queue


  1. !/bin/sh

sleep $1 hostname