My goal is to overwrite a hard drive after a client project completes in order to secure their privacy.

My goal is to create a perl script that will write ZEROS to a text file until the file is around 2GB in size.

Which one is it? The latter isn't a means of achieving the first. Especially when it comes to security, don't reinvent the wheel. Use a disk-wiping program written by someone who knows what they're doing. (Even that might not be reliable for flash-based storage. But a good program should tell you that if it's the case.)

In reply to Re: Create text files recursively and write ZEROS within them all - data overwriting purposes by ikegami
in thread Create text files recursively and write ZEROS within them all - data overwriting purposes by panicbuttonsec

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