Displays a short text fullscreen

sm

Displays a short text fullscreen

Screen Message will display a given multi-line message as large as possible, fullscreen and black on white. You can specify the text either when launching sm, or edit it while the program is running.
.deb package installation, upgrading, and removal testing tool

piuparts

.deb package installation, upgrading, and removal testing tool

piuparts tests that .deb packages (as used by Debian) handle installation, upgrading, and removal correctly. It does this by creating a minimal Debian installation in a chroot, and installing, upgrading, and removing packages in that environment, and comparing the state of the directory tree before and after. piuparts reports any files that have been added, removed, or modified during this process.
Log Viewer is a useful tool for viewing system logs

deepin-log-viewer

Log Viewer is a useful tool for viewing system logs

Log viewer is a tool that collects logs generated when an application is running, for example, logs generated when operating system and applications start up and run. You can do trouble-shooting and solve problems quickly by analyzing logs.
Scanning Probe Microscopy visualization and analysis tool

gwyddion

Scanning Probe Microscopy visualization and analysis tool

Gwyddion is a modular program for Scanning Probe Microscopy (SPM) data visualization and analysis. It is primarily intended for analysis of height field data obtained by microscopy techniques like * Atomic Force Microscopy (AFM), * Magnetic Force Microscopy (MFM), * Scanning Tunneling Microscopy (STM), * Near-field Scanning Optical Microscopy (SNOM or NSOM) and others. However, it can be used for arbitrary height field and image analysis.
wpa_cli

wpasupplicant

client support for WPA and WPA2 (IEEE 802.11i)

wpa-supplicant is a userspace daemon handling connection and authentication in wireless and wired networks, primarily secured with the WPA/WPA2/WPA3 protocols. This software provides key negotiation with the access point (WPA Authenticator), and controls association with IEEE 802.11i networks.
ncurses-based audio player

ncmpc

ncurses-based audio player

This package contains a text-mode client for MPD, the Music Player Daemon. Its goal is to provide a keyboard oriented and consistent interface to MPD, without wasting resources.