This is the user-space component to the Linux auditing system, which allows logging of system calls made by user-land processes. auditd is responsible for writing audit records to the disk. Viewing the logs is done with the ausearch or aureport utilities. Configuring the audit rules is done with the auditctl utility.

Dmidecode reports information about your system's hardware as described in your system BIOS according to the SMBIOS/DMI standard. This typically includes system manufacturer, model name, serial number, BIOS version, asset tag as well as a lot of other details of varying level of interest and reliability depending on the manufacturer. This will often include usage status for the CPU sockets, expansion slots (e.g. AGP, PCI, ISA) and memory module slots, and the list of I/O ports (e.g. serial, parallel, USB).

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.

Show graphs for 1 minute, 5 minute, 15 minute load averages on the console.

Pam-mount is a PAM module to mount volumes when a user logs in. It can mount all local file systems supported by mount, as well as LUKS volumes encrypted with the user's log-in password.

This package inherits pam-mount but is compiled specifically for use with the greetd log-in manager. It uses a different configuration location and PAM name space from the original.

This allows greetd-pam-mount to auto-(un)mount XDG_RUNTIME_DIR without interfering with any pam-mount configuration.

Sysdig is a simple tool for deep system visibility, with native support for containers. It combines features of multiple system administration tools such as the strace, tcpdump, htop, iftop and lsof into a single interface. The novel architecture of the tool means that the performance impact of the tracing on the system is very light, compared to the likes of strace. The sysdig command has an interface similar to strace, while the csysdig command is better suited for interactive used, and has a user interface similar to htop.

If you use Guix System, the kernel Linux has BPF support, and you should launch this tool using the --modern-bpf argument of the sysdig or csysdig commands. The following Bash aliases can be added to your ~/.bash_profile file, for example:

alias sysdig=sudo sysdig --modern-bpf alias cysdig=sudo csysdig --modern-bpf

Detox is a program that renames files to make them easier to work with under Unix and related operating systems. Spaces and various other unsafe characters (such as "$") get replaced with "_". ISO 8859-1 (Latin-1) characters can be replaced as well, as can UTF-8 characters.

Small console getty that is started on the Linux text console, asks for a login name and then transfers over to login. It is extended to allow automatic login and starting any app.

stress-ng stress-tests a computer system by exercising both physical subsystems as operating system kernel interfaces. It can stress the CPU, cache, disk, memory, socket and pipe I/O, scheduling, and much more, in various selectable ways. This can trip hardware issues such as thermal overruns as well as operating system bugs that occur only when a system is being thrashed hard.

You can also measure test throughput rates, which can be useful to observe performance changes across different operating system releases or types of hardware. However, stress-ng is not a benchmark. Use it with caution: some of the tests can make poorly designed hardware run dangerously hot or make the whole system lock up.

Compared to its inspiration, stress, stress-ng offers many additional options such as the number of bogo operations to run, execution metrics, verification of memory and computational operations, and considerably more stress mechanisms.

Lynis is a security auditing tool. It performs an in-depth security scan and runs on the system itself. The primary goal is to test security defenses and provide tips for further system hardening. It will also scan for general system information, vulnerable software packages, and possible configuration issues.

nnn is a fork of noice, a fast and minimal text terminal file browser with keyboard shortcuts for navigation, opening files and running tasks. There is no configuration file and MIME associations are hard-coded.

This package provides a Perl interface (Perl::Rename) as well as a command-line utility (rename) that can rename multiple files at once based on a Perl regular expression.

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

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 an editor for the Novena EEPROM. Novena boards contain a device-dependent descriptive EEPROM that defines various parameters such as serial number, MAC address, and featureset. This program allows you to view and manipulate this EEPROM list.

sedsed can debug, indent, tokenize and HTMLize your sed script.

In debug mode, it reads your script and adds extra commands to it. When executed you can see the data flow between the commands, revealing all the magic sed performs on its internal buffers.

In indent mode, your script is reformatted with standard spacing.

In tokenize mode, you can see the elements of every command you use.

In HTMLize mode, your script is converted to a beautiful colored HTML file, with all the commands and parameters identified for your viewing pleasure.

With sedsed you can master any sed script. No more secrets, no more hidden buffers.

GNU pies is a program that supervises the invocation and execution of other programs. It reads the list of programs to be started from its configuration file, executes them, and then monitors their status, re-executing them as necessary.

Nmon is yet another system monitor useful in systems administration, debugging, tuning, and benchmarking.

The configurable ncurses interface displays all the classic resource usage statistics (CPU, memory, network, disk, ...) as real-time graphs or numbers. It can also list the processes responsible in a top-like table.

A less common nmon feature is its ability to create highly detailed log files in CSV format. These can be imported into spreadsheets or fed straight into an RRD using rrdtool for further analysis, or to create colourful graphs.

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.

This package provides an implementation of the MAC-Telnet protocol used by RouterOS devices. It provides the following commands:

macping

Ping RouterOS devices or mactelnetd hosts.

mactelnetd

MAC-Telnet daemon.

mactelnet

MAC-Telnet client.

mndp

Discover other RouterOS devices or mactelnetd hosts.

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

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.

Shadow provides a number of authentication-related tools, including: login, passwd, su, groupadd, and useradd.

The Cactus File Manager (cfm) helps you manage your files visually from a text terminal. It aims to be simple and fast, with key bindings inspired by vi.