A set of commands to use the XFS filesystem, including mkfs.xfs.

eCryptfs is a POSIX-compliant enterprise-class stacked cryptographic filesystem for Linux.

The hcidump utility allows the monitoring of Bluetooth activity. It provides a disassembly of the Bluetooth traffic and can display packets from higher level protocols such as RFCOMM, SDP and BNEP.

Most users who wish to use rngd in Debian should use the rng-tools5 package. However, Debian traditionally has shipped a much extended fork with many extra options; this fork is now available as rng-tools-debian with migration provided by this transitional dummy package.

Qt is a cross-platform C++ application framework. Qt's primary feature is its rich set of widgets that provide standard GUI functionality.

GDB is a source-level debugger, capable of breaking programs at any specific line, displaying variable values, and determining where errors occurred. Currently, gdb supports C, C++, D, Objective-C, Fortran, Java, OpenCL C, Pascal, assembly, Modula-2, Go, and Ada. A must-have for any serious programmer.