June 2004
Intermediate to advanced
1056 pages
39h 58m
English
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Name
srm
Synopsis
srm [option]file
Securely removes files or directories by overwriting, renaming, and
truncating before unlinking. This prevents other users from
undeleting or recovering any information about the file from the
command line. srm
is the
brute force behind the Finder’s Secure Empty Trash
option.
srm
can’t
remove write-protected files owned by another user, regardless of the
permissions on the directory containing the file.
Options
-
-f,--force Ignore nonexistent files, and never prompt.
-
-i,--interactive Prompt before files are deleted.
-
-r,-R,--recursive Recursively remove the files of directories.
-
-s,--simple Delete the file, but only overwrite the file with a single pass.
-
-m,--medium Overwrite the file with seven U.S. Department of Defense-compliant passes (
0xF6,0x00,0xFF, random,0x00,0xFF, random).-
-z,--zero After overwriting, zero blocks used by file.
-
-n,--nounlink Overwrite the file, but don’t rename or unlink it.
-
-v,--verbose Display what is being done.
-
--help Display help file information for the
srm-
--version Display the version information for
srm.
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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.