DeltaRPM is a tool that generates RPMs that contains the difference between an
old and a new version of an RPM. This makes it possible to recreate the new RPM
from the deltarpm and the old one. You don't have to have a copy of the old
RPM, as it can also work with installed RPMs. The package also contains tools
for creating and applying delta ISOs.
Dirdiff is a graphical tool for displaying the differences between
directory trees and for merging changes from one tree into another.
Dirdiff can handle up to 5 trees. It displays a main window with a
list of the files which are different between the trees, with colored
squares to indicate the relative ages of the versions. A menu allows
you to display the differences between any two of the versions in
another window. Another menu allows you to copy the file from one
tree to another.
Dmidecode is a tool or dumping a computer's DMI (some say SMBIOS) table
contents in a human-readable format. The output contains a description of the
system's hardware components, as well as other useful pieces of information
such as serial numbers and BIOS revision.
CISO - tiny and easy to use tool to convert ISO images
in CSO (compressed ISO) format.
Dunst is a lightweight replacement for the notification-daemons provided
by most desktop environments. It's very customizable, doesn't depend on
any toolkits, and therefore fits in those window manager centric setups
we all love to customize to perfection.
Dupmerge reads a list of files from standard input (eg., as produced by
"find . -print") and looks securely for identical files. When it finds
two or more identical files, all but one are unlinked to reclaim the
disk space and recreated as hard links to the remaining copy.
Fanout and fanterm are two utilities that allow you to run commands on
multiple machines. The difference is that fanout only runs non-interactive
commands (like dd, cat, adduser, uname -a, etc.) and pipelines built of
these. The output is collected into a single display that can be viewed by
less or redirected to a file.
Fanterm, on the other hand, allows you to run interactive text mode
commands on multiple machines at the same time. Your keystrokes are sent
to a shell or application running on each of the target systems. The
output from each system is shown in a separate xterm.
Filedupe is a utility to assist in finding any duplicates as you
accumulate files. It stores md5 hashes of all the files seen in a
system wide database (/var/db/filedupe.db) so it can quickly spot any
duplicates.
dc3dd is a patched version of GNU dd to include a number of features useful
for computer forensics. Many of these features were inspired by dcfldd, but
were rewritten for dc3dd.
- Pattern writes. The program can write a single hexadecimal value or a text
string to the output device for wiping purposes.
- Piecewise and overall hashing with multiple algorithms. Supports MD5, SHA-1,
SHA-256, and SHA-512.
- Progress meter with automatic input/output file size probing.
- Combined log for hashes and errors.
- Error grouping. Produces one error message for identical sequential errors.
- Verify mode. Able to hash output files and compare hashes to the acquisition
hash.
- Ability to split the output into chunks with numerical or alphabetic
extensions.
- Ability to write multiple output files simultaneuously.
DownTime is a GTK-based graphical utility for scheduling shutdowns,
reboots, et cetera.