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Thank you guys so much for all the help. I think I will spend my winter break learning how to use awk properly. Maybe I will try to learn FORTRAN as well. I know it would help with this kind of...

Oh okay. I get it now.
{print "x += "$5" ^ "2}
will basically write $5^2 + $5^2.... and so on, where each $5 is from a different line that meets the criteria. Awk is not actually doing the...

They are pretty small numbers so you're right, double precision won't be enough. I didn't put the actual input on here becuase it is quite wide and I wasn't sure it would fit, but here are the first...

Yes, Don, I apologize. The script is called "integrate" and the file I am searching through is called "density.mesh_index" this is how the command looks:
./integrate density.mesh_index 3 1008163
I...

Hello all,

I need help making a script run faster since I have a huge file to sift through. The file I am running my script on looks like this:
1 -1.9E+001 -1.8E-001 1.5E+001 3.32E+001
2 ...

Yes there are 6 leading spaces! Thanks very much! I will see if it works. Sorry for the late reply, it's been a hectic month for me.

Thanks Don that helps a lot. So for the x_2 the format is (label(j), minimum j, max j) correct?

LMH that is also very helpful. I am using gfortran to compile. I will look into using this for...

Hi,
I've been having trouble figuring out what the following read statement is doing.
DO I = 1, natom
k = 3 * (i - 1) + 1
READ(8,*) AtNum(I), (X_2(J),J=k,k+2)
END...

That is the thing, I need to understand the programming language to find the problem. I realize it may not be the program, but I can't know that if I don't know what the program is telling the...

I thought it was just the makefile that was needed, which should be in my last post (let me know if it is not). Let me know what else should be posted and I will post it. Sorry about that.

Okay thanks! that actually seem very straight forward. But the real problem I'm having is within the files that make up the executable. Do you know of a website that can help me understand the...

Thank you for the information. You are very helpful. I will give this a try. Someone told me about waitpid and so I gave that a try, but I found out that the process is not a child process. I didn't...

I am hoping someone can give me a good free web resource for writing code to compile a binary executable. I am getting fairly decent at writing shell script, are the .f files just shell scripts?...

Sorry for the delay. I got it to work by copying someone elses files, but I would still like to know what was wrong. This is the new makefile that works, I will dig around and see if I kept the old...

Well it is the other files in the same dir as the makefile that I think are the problem. It will say things like:MainProgram.f: undefined reference: ""

I get the same as you.

Hi, I am having a problem compiling a program with gfortran. The program compiles with g77 and f77 but I don't have those. I edited the makefile from FC = g77 to FC = gfortran but when I run it I get...

I apoligize. As I said I am very new to this. I didn't know it was different for different shells, but I will be sure to include that information next time.
I wanted to let you all know that I got...

Okay thanks! I'll give it a try.

It is the C shell. The script I am editing has /bin/csh -f.

Thanks for the reply! Again, I'm very new to this so I apologize, but I don't understand some of the code. In if [ -f file1 -a -f file2 -a -f file3 ] what does the -f and -a mean? Also is the "1"...

I'm extremely new to shell scripting so I apologize for the crudeness of my descriptions. I am editing a script that will write files (e.g. Job0_A.com, Job1_A.com, etc.) and then run them through a...