call system command

[TheKKK]

i would like to run an program.exe through my fortran code in a folder different than my fortran code

I have used the following 3 codes but the system cannot find the file specified:

1.
call system ('folder\program <IN.DAT')

2.
call system ('\folder\program <IN.DAT')

3.
call system ('cd folder')
call system ('program <IN.DAT')

Could anyone help me? Thanx in advance.

 

[johnhors]

Have you tried including the full path name (including drive label)?


call system ('c:\folder\program <IN.DAT')

 

[TheKKK]

It doesnt work also when entering the full path like this:

call system ('C:\Users\kostis\Documents\COMPUTATIONAL PHYSICS 4th\PROJECT SCREEN3\screen3LOOP\folder\program <IN.DAT')

however i can create a file in the folder like this:

OPEN(UNIT=99,FILE='folder\IN.DAT',STATUS='REPLACE')

so i would expect this:

call system ('folder\program <IN.DAT')

to work

 

[johnhors]

Does

folder\program <IN.DAT

work successfully at the command prompt in a DOS window?


In the full path name instead of using the long name version with spaces try the equivalent short name version (8.3 format)

 

[xwb]

Like everything else, Sysyem does not like spaces in file or directory names. Try

call system ('"C:\Users\kostis\Documents\COMPUTATIONAL PHYSICS 4th\PROJECT SCREEN3\screen3LOOP\folder\program.exe" <IN.DAT')

 

[TheKKK]

The
folder\program <IN.DAT
doesnt work in a DOS window so i shouldnt expect it to work throygh my code.

But then the
call system ('cd folder')
call system ('program <IN.DAT')
should work then but it doesnt also

How can i put these two commands in a single line?

 

[TheKKK]

The code by xwb didnt work:

call system ('"C:\Users\kostis\Documents\COMPUTATIONAL PHYSICS 4th\PROJECT SCREEN3\screen3LOOP\folder\program.exe" <IN.DAT')

 

[johnhors]

does

program <IN.DAT

work at the command prompt in a DOS window?


Programs I write that pick up data file names from the launching command line don't require the < symbol , I use the standard fortran "call get_command_argument" to do this (without a <)


What error message did you get in the DOS window with folder\program <IN.DAT ?

 

[TheKKK]

The command
program <IN.DAT
works at the command promt in a DOS window

 

[xwb]

call system ('cd folder')
call system ('program <IN.DAT')

This won't work because it spawns two separate shells; the first cds to a directory and then exits, the second attempts to execute and then exits. To put both commands on the same line, join them with &&

call system ('cd folder && program < in.dat')

 

[Denial]

It has been a long time since I did any FORTRAN, but at the back of my head there is a tiny recollection that with one of the compilers I used you had to use two backslashes ("\\") if you wanted to feed SYSTEM a string that was intended to contain a single backslash ("\").

HTH.