Removing files is easy; A simple “rm” on the file will do. But what if
you want to be really sure no one is going to re-generate private
data contained in a file you deleted? For those cases, you can use
wipe, a secure command-line
file deletion tool.
Unlike “rm”, which simply calls the “unlink” system call to de-allocate the
blocks used by a file, wipe writes random data multiple times over your files
before deleting them, making recovery much more difficult or even impossible.
Wipe can work on files or on whole directory structures, recursively.
Keywords: Daily Debian, wipe, rm, secure deletion, security, privacy
When I first tried Windows after using DOS for so long, I
was horrified to learn that such a popular DOS program like
XTree was not available for that operating
system. A short while after that, I switched to Linux just to find that
nothing resembling XTree existed there either. I ended up adapting to the new
reality, but still missed the old program.
Some time ago, I learned of
ytree, an “XTree Gold” clone
for Linux. YTree is an almost perfect clone, and better in many ways. It
removes the silly memory limitation of the original XTree and adds support
for features not present in the old FAT filesystem, like permissions, long
filenames, file ownership, etc.
Even though I use it far less than I used the old DOS XTree, ytree is a
powerful addition to the growing arsenal of file managers available to the
Linux user and sysadmin.
Keywords: Daily Debian, ytree, XTree, Xtree Gold, file manager, Linux
It’s hard to appreciate the value of a package like
tuxpaint if you don’t
have kids the right age.
Tuxpaint is a paint program for small kids. Besides the all too common
features, present in most paint programs, it also has sounds, bubbly icons,
large controls and many other qualities kids will surely enjoy. One of my
kid’s favorite features is the “Stamp” action, where a figure from a library
can be selected and pasted in many ways on the canvas.
If you download tuxpaint, make sure you also download the
package, which increases the already large set of stamps available.
Keywords: Daily Debian, tuxpaint, paint, kids, educational, graphics, editor
options to edit text files under
Linux. Religious issues aside, they’re all mature and offer a complete
set of options and features, ranging from the trivial, to the obscure.
But what do you use when you need to edit a binary file?
bvi is the answer!
Bvi is a “vi-like” editor that works on binary files. With bvi, you can
replace a character or entire strings inside binary files, search for strings
in ASCII or binary, and even insert binary content. It’s vi all the way,
except it talks binary.
Bvi is one of those little “must have” tools that may save your day, someday.
Keywords: Daily Debian, editor, search, replace, binary, vi, emacs
Gone were the days when I received two or three emails a day. Today, email
comes in volume, and usually contains important information that needs to be
kept for reference in the future.
Mairix is a command-line
utility that allows you to perform searches in your emails. Unlike other
solutions, mairix creates an index of your mail, so searches are almost
instantaneous. Mairix was originally written with Maildir in mind, but it now
supports Mbox and MH mail spools also.
Keywords: Daily Debian, mairix, search, mail, index, find