You want to use forking. For some things you can just fork 40 kids and let each handle one file. However when you are doing network stuff you need to be a little careful with fork(). 40 kids all trying to simultaneously FTP will saturate the network and worse still the collisions will slow the overall data transfer rate down.

Here are some links to nodes where I have posted some fork examples of increasing complexity.
Forked off!
Help with waitpid and forking ?
Parallel::ForkManager vs global variables

I would write the files and fork a kid to send it. You will get collisions if it takes longer to FTP the files than to write them using this approach. Alternatively fork off a daemon which sends the files as they and it become available. There are a number of methodologies you can use to make sure the child waits for all the files and dies when finished.

cheers

tachyon

s&&rsenoyhcatreve&&&s&n.+t&"$'$`$\"$\&"&ee&&y&srve&&d&&print

In reply to Re: FTP in background by tachyon
in thread FTP in background by Anonymous Monk

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