Who will bring the -P tag to "rm"'? Post: 302314814

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Top Forums Shell Programming and Scripting Who will bring the -P tag to "rm"'? Post 302314814 by SilversleevesX on Sunday 10th of May 2009 12:58:01 PM

05-10-2009

Registered User

Fixed the above once and for all

Well, to distill about an hour's worth of research and trial and error novice scripting, I'll say that I'll have to wait till I next boot into Wubi Kubuntu to try out shred.

Can't use it in Cygwin because GNU has NTFS (which Cygwin obviously runs on/in) is on the shred "exceptions" list of working file allocations.

As would be HFS+ Journaled I suppose. No wonder Apple did their own mod on rm!

BZT

From the GNU CoreUtils page on 'shred' invocation:
Please note that shred relies on a very important assumption: that the file system overwrites data in place. This is the traditional way to do things, but many modern file system designs do not satisfy this assumption. Exceptions include:

* Log-structured or journaled file systems, such as those supplied with AIX and Solaris, and JFS, ReiserFS, XFS, Ext3 (in data=journal mode), BFS, NTFS, etc. when they are configured to journal data.
* File systems that write redundant data and carry on even if some writes fail, such as RAID-based file systems.
* File systems that make snapshots, such as Network Appliance's NFS server.
* File systems that cache in temporary locations, such as NFS version 3 clients.
* Compressed file systems.

SilversleevesX

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LEARN ABOUT PHP

mesg

MESG(1)                                                            User Commands                                                           MESG(1)

NAME

       mesg - display (or do not display) messages from other users

SYNOPSIS

       mesg [option] [n|y]

DESCRIPTION

       The mesg utility is invoked by a user to control write access others have to the terminal device associated with standard error output.  If
       write access is allowed, then programs such as talk(1) and write(1) may display messages on the terminal.

       Traditionally, write access is allowed by default.  However, as users become more conscious of various security risks, there is a trend  to
       remove write access by default, at least for the primary login shell.  To make sure your ttys are set the way you want them to be set, mesg
       should be executed in your login scripts.

ARGUMENTS

       n      Disallow messages.

       y      Allow messages to be displayed.

       If no arguments are given, mesg shows the current message status on standard error output.

OPTIONS

       -v, --verbose
              Explain what is being done.

       -V, --version
              Display version information and exit.

       -h, --help
              Display help text and exit.

EXIT STATUS

       The mesg utility exits with one of the following values:

            0     Messages are allowed.

            1     Messages are not allowed.

           >1     An error has occurred.

FILES

       /dev/[pt]ty[pq]?

SEE ALSO

       login(1), talk(1), write(1), wall(1), xterm(1)

HISTORY

       A mesg command appeared in Version 6 AT&T UNIX.

AVAILABILITY

       The mesg command is part of the util-linux package and is available from https://www.kernel.org/pub/linux/utils/util-linux/.

util-linux                                                           July 2014                                                             MESG(1)