September 2009
Beginner
942 pages
85h 34m
English
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Name
shred
Synopsis
shred [options]files
Overwrite a file to make the contents unrecoverable, and delete the file afterward if requested.
Options
- -
Shred standard output.
- -f, --force
Force permissions to allow writing to files.
- --help
Print help message and exit.
- -nnum, --iterations=num
Overwrite files num times (default is 25).
- --random-source=file
Use file as the source of random bytes for overwriting. Default is /dev/urandom.
- -snum, --size=num
Shred num bytes. num can be expressed with suffixes (e.g., K, M, or G).
- -u, --remove
Remove file after overwriting. shred does not remove the file unless this option is specified.
- -v, --verbose
Verbose mode.
- --version
Print version information and exit.
- -x, --exact
Shred the exact file size; do not round up to the next full block.
- -z, --zero
On the final pass, overwrite with zeros to hide the shredding.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.