SRM(1) SRM(1)
NAME
srm - securely remove files or directories
SYNOPSIS
srm [OPTION]... FILE...
DESCRIPTION
srm removes each specified file by overwriting, renaming, and truncating it before unlinking. This
prevents other people from undeleting or recovering any information about the file from the command
line.
srm, like every program that uses the getopt function to parse its arguments, lets you use the --option -option
option to indicate that all following arguments are non-options. To remove a file called '-f' in the
current directory, you could type either "srm -- -f" or "srm ./-f".
OPTIONS
-d, --directory
ignored (for compatibility with rm(1))
-f, --force
ignore nonexistent files, never prompt
-i, --interactive
prompt before any removal
-r, -R, --recursive
remove the contents of directories recursively
-s, --simple
only overwrite with a single pass of random data
-m, --medium
overwrite the file with 7 US DoD compliant passes (0xF6, 0x00, 0xFF, random, 0x00, 0xFF, ran-dom) random)
dom)
-z, --zero
after overwriting, zero blocks used by file
-n, --nounlink
overwrite file, but do not rename or unlink it
-v, --verbose
explain what is being done
--help display this help and exit
--version
output version information and exit
NOTES
srm can not remove write protected files owned by another user, regardless of the permissions on the
directory containing the file.
The -s option overrides the -m option, if both are present. If neither is specified, the 35-pass
Gutmann algorithm is used.
Development and discussion of srm is carried out at <http://sourceforge.net/project/?group_id=3297,
which is also accessible via <http://srm.sourceforge.net.
SEE ALSO
rm(1)
Mac OS X 20 September 2004 SRM(1)
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