AIDE (Advanced Intrusion Detection Environment) is a file and directory integrity checker. It creates a database from the regular expression rules that it finds from its configuration files. Once this database is initialized it can be used to verify the integrity of the files. It has several message digest algorithms that are used to check the integrity of files. All of the usual file attributes can be checked for inconsistencies.

The smartmontools package contains utility programs to control and monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (S.M.A.R.T.) built into most modern ATA and SCSI hard disks. In many cases, these utilities will provide advanced warning of disk degradation and failure.

Dstat is a versatile replacement for vmstat, iostat, netstat, and ifstat. Dstat overcomes some of their limitations and adds some extra features, more counters and flexibility. Dstat is handy for monitoring systems during performance tuning tests, benchmarks or troubleshooting.

Dstat allows you to view all of your system resources in real-time, you can, e.g., compare disk utilization in combination with interrupts from your IDE controller, or compare the network bandwidth numbers directly with the disk throughput (in the same interval).

Tree is a recursive directory listing command that produces a depth indented listing of files, which is colorized ala dircolors if the LS_COLORS environment variable is set and output is to tty.

This package provides an on demand system DBus service. It allows callers to configure network authentication and domain membership in a standard way. Realmd discovers information about the domain or realm automatically and does not require complicated configuration in order to join a domain or realm. Dbus system service that manages discovery and enrollment in realms/domains like Active Directory or IPA.

dfc (df color) is a modern version of df. It uses colors, draws pretty graphs and can export its output to different formats.

hungrycat prints the contents of a file to standard output, while simultaneously freeing the disk space it occupied. It is useful if you need to process a large file, don't have enough space to store both the input and output files, and don't need the input file afterwards. While similar in principle to running cat immediately followed by rm, hungrycat actually frees blocks as soon as they are printed instead of after the entire file has been read, which is often too late.

Btop++ provides unified monitoring of CPU, memory, network and processes.

nq can create very lightweight job queue systems which require no setup, maintenance, supervision, or any long-running processes.

SSHGuard protects hosts from brute-force attacks against SSH and other services. It aggregates system logs and blocks repeat offenders using one of several firewall backends.

CoreCtrl allows you to control with ease your computer hardware using application profiles.

This is htop, an interactive process viewer. It is a text-mode application (for console or X terminals) and requires ncurses.

Jnettop is a traffic visualiser, which captures traffic going through the host it is running from and displays streams sorted by bandwidth they use.

Stress is a tool that imposes a configurable amount of CPU, memory, I/O, or disk stress on a POSIX-compliant operating system and reports any errors it detects.

Stress is not a benchmark. It is a tool used by system administrators to evaluate how well their systems will scale, by kernel programmers to evaluate perceived performance characteristics, and by systems programmers to expose the classes of bugs which only or more frequently manifest themselves when the system is under heavy load.

This package provides a tiny system info utility.

Atop is an ASCII full-screen performance monitor for Linux that is capable of reporting the activity of all processes (even processes have finished during the monitoring interval), daily logging of system and process activity for long-term analysis, highlighting overloaded system resources by using colors, etc. At regular intervals, it shows system-level activity related to the CPU, memory, swap, disks (including LVM) and network layers, and for every process (and thread) it shows e.g. the CPU utilization, memory growth, disk utilization, priority, username, state, and exit code.

Facter is a tool that gathers basic facts about nodes (systems) such as hardware details, network settings, OS type and version, and more. These facts can be collected on the command line with the facter command or via the facter Ruby library.

This package provides a command line tool that can give numerous reports on memory usage on GNU/Linux systems.

HyFetch is a command-line system information tool fork of neofetch. HyFetch displays information about your system next to your OS logo in ASCII representation. The ASCII representation is then colored in the pattern of the pride flag of your choice. The main purpose of HyFetch is to be used in screenshots to show other users what operating system or distribution you are running, what theme or icon set you are using, etc.

ClusterSSH controls a number of xterm windows via a single graphical console window to allow commands to be interactively run on multiple servers over ssh connections.

Hosts is a command line program for managing /etc/hosts entries. On Guix System, /etc/hosts is managed from the system configuration; hosts only works when using the Guix package manager on a foreign distro. hosts works with existing hosts files and entries, providing commands to add, remove, comment, and search.

The GNU Shepherd is a daemon-managing daemon, meaning that it supervises the execution of system services, replacing similar functionality found in typical init systems. It provides dependency-handling through a convenient interface and is based on GNU Guile.

UwUFetch is a system information tool in the lineage of NeoFetch, PFetch, HyFetch, and the like. It prints ASCII art of your system's logo as well as a summary of system information. UwUFetch's unique contribution is the uwu-ification of various words used in the description. For example, Guix becomes gUwUix.

fdupes is a program for identifying duplicate files residing within specified directories.