UNIX for Dummies Questions & Answers

On bash I run precompiled c Program as follows:

./create_cust 1 10000 US S > us_cust.csv

create_cust is a c program and requires 4 parameters.
I am redirecting the output of this program to csv file

I need to run this same program in perl

I am aware of exec command though not sure it will work.

Can anybody will direct me to a code which is calling a parameterised c program through perl and how to redirect its output to csv file???

Why not simply try and see what happens
I'd first try it on the command line, if it works then put it in the script.

Code:

perl -e 'exec("create_cust 1 10000 US S > us_cust.csv");'

or

Code:

perl -e 'system("create_cust 1 10000 US S > us_cust.csv");'

Inside the perl script, something like following should also work:

Code:

my $par1=1;
my $par2=10000;
my $par3='US';
my $par4='S';
system("create_cust $par1 $par2 $par3 $par4 > us_cust.csv");

It gives error that create_cust is not internal / external command or oparable program or batch file

And

Code:

perl -e 'exec("./create_cust 1 10000 US S > us_cust.csv");'

?

. not recognised as external or internal command

Strange... I wonder if a simple

Code:

perl -e 'exec("ls -l")'

will work? If this won't work too, than there might be something wrong with your Perl.
However I have tried to run a c program before I posted here and it worked for me

I assume you were in directory where your c program is stored when you issued the Perl command? Else one needs to specify the full path to that program.

I am using cygwin and have installed activestate for perl on windows.

I am going in bash of cygwin and going to directory where program executable is present and executing above command.

It gives error.

The other code which u gave for ls -l runs properly on cygwin