Hi, I'm a newbie here and this is my first question to the group, so forgive any lapse in etiquette. I wrote this script that is heavy in the use of system() and I run it using cygwin and it runs fine in that tool- however, when I use Strawberry Perl to run it there are a number of commands within the system() that it doesn't recognize. For example:

system ('grep -l "DATAmessage.*3\.0" *.xml > 3.0_files_arraydata.txt')
+; 
system ("mv temp_3.0_files_onixarraydata.txt 3.0_files_arraydata.txt")
+;  
system ("cat *files_arraydata.txt > data2.txt");
system ("rm data2.txt"); 

system ("sort -u data2.txt > data.txt");
[download]

It appears that the commands grep, mv, cat and rm all fail because "grep|mv|cat|rm is not recognized as an internal or external command, operation program or batch file" I also use sort, but I receive no error message for that command.

I have tried other things to swap out the system calls like File::Grep in place of the grep calls, but while File::Grep works, it was slower than molasses in the dead of winter in Strawberry Perl. I know many look-down on the use of system ();, but I find it to be very fast. Any suggestions? And thank you for reading.