command for find error line

[baharengineer]

hi

how can i find the line in a long program that has error between running program?

my program has no error and has 1 warning but when i run it i have an error ! and some part of output print and stop program

by what command i can understand the line that has error?

some one tell me a command like :
$ debug

but he is not sure!

 

[mikrom]

use debugger

 

[baharengineer]

where i must put this line?

i put this line (use debugger) after line program definition
for example:

PROGRAM BLDANL
use debugger

but i have an error : "Could not find the file debugger.mod.

 

[baharengineer]

is it a command or your means is debugger of fortran?!!!

i search google but i can't find this command " use debugger"

!!!

 

[mikrom]

With debugger I didn't mean a module, but a tool for finding errors.