Question

I have a string containing lots of text with white-spaces like:

String str = "abc xyz def";

I am now passing this string as a command line argument to a perl file using C# as in:

Process p = new Process();
p.StartInfo.FileName = "c:\\perl\\bin\\perl.exe";
p.StartInfo.Arguments = "c:\\root\\run_cmd.pl " + str + " " + text_file;

In the run_cmd.pl file, I have the follwing:

open FILE, ">$ARGV[1]" or die "Failed opening file";
print FILE $ARGV[0];
close FILE;

On printing, I am able to copy only part of the string i.e. “abc” into text_file since Perl interprets it as a single argument.

My question is, is it possible for me to copy the entire string into the text file including the white spaces?

Answer 1

If you want a white space separated argument treated as a single argument, with most programs, you need to surround it with " "

e.g run_cmd.pl "abc xyz def" filename

Try

p.StartInfo.Arguments = "c:\\root\\run_cmd.pl \"" + str + "\" " + text_file;

Side note:

I don’t know about windows, but in Linux there’s a number of arguments and maximum length of one argument limit so you might want to consider passing the string some other way, reading it from a tmp file for example.