G'day Njoud,

Welcome to the monastery.

Unfortunately, "it doesn't work" doesn't help us much. Try:

system("glomosim data.in");
[download]

Take a look at the system documentation.

Also, to get a better answer, follow the guidelines in "How do I post a question effectively?".

Find out why it doesn't work, for example:

#!/usr/bin/perl

use strict;
use warnings;

my @args = ("dir", "c:\\"); # replace this with your command and the a
+rgument
system(@args) == 0 or die "system @args failed: $?"
[download]

See system for more information. If you're new the following may be helpful:

• perlintro
• http://learn.perl.org
• http://perldoc.perl.org
• The tutorials section of this site, including PerlMonks for the Absolute Beginner

For one it would be useful to see the error message. Also, as a minimum, you would need quotes around the command.

system("glomosim data.in");
[download]

Thank you for your replay I write the following as you have mentioned :

my @args = ("glomosim data.in");                                      
+                       
            system(@args) == 0
            or die "system @args failed: $?";
[download]

So I get the following error : system glomosim data.in failed :65280 at run_Ftp.pl line 68. what I can do else ?!

Your example doesn't match mine exactly. Try:

#!/usr/bin/perl

use strict;
use warnings;

my @args = ("glomosim", "data.in"); 
system(@args) == 0 or die "system @args failed: \n syscode:$? \n error
+:$! \n";
[download]

ensure the location of glomosim is in your system PATH variable, or provide full paths to both the program and the input file. Also, you replied to yourself rather than anyone else. See the links I provided earlier.

I have put on the begining of .pl file :

use strict;
use warnings;
......
[download]

I have a file with name (data.in) in the path (C:\glomosim\bin) which I want to execute it on cmd.exe using the command (glomosim data.in) where "glomosim" is a keyword to execute the file (glomosim is a NW simualtor). So I write the following :

  my @args = ("c:/glomosim/bin/","data.in"); 
            system(@args) == 0 or die "system @args failed: \n syscode
+:$? \n error:$! \n";
[download]

then many errors appear :( ! Plz I need a help really!