What does "# $" mean in bash?

Question

Say for example the script starts as follows

#!/bin/bash #$ -S /bin/bash #$ -l hostname=qn* 

and then down the page the actual script comes into play. My question is: what does the symbol "# $" mean?

Answer 1

Do you work on a group cluster in any way? How is the Sun Grid Engine? In scripts designed to run as a batch job, there may be special values.

https://www.wiki.ed.ac.uk/display/EaStCHEMresearchwik/How+to+write+a+SGE+job+submission+script

Update:

higher link blocks when used from stackoverflow.com (works with google.com)

alternatives:

• http://www.cbi.utsa.edu/sge_tutorial
• http://web.njit.edu/all_topics/HPC/basement/sge/SGE.html

Answer 2

Lines starting with # are comments. The first line may begin with #! but it is still a comment on bash and is simply used to indicate the interpreter to be used for the file. All other lines beginning with # are absolutely not important for bash , whether the next character has $ or something else.

Answer 3

They seem to be parameters for the Grid Engine (ex-Sun), look at this SO question or this one .

They make heavy use of such comments.