command-not-found.com
Display eyes on the screen that follow the mouse cursor. More information: <https://manned.org/xeyes>.
Configure system authentication resources. More information: <https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/system-level_authentication_guide/authconfig-install>.
Full-stack JavaScript platform for building web applications. More information: <https://meteor.com>.
Utility to investigate sockets. More information: <https://manned.org/ss.8>.
OCR (Optical Character Recognition) engine. More information: <https://github.com/tesseract-ocr/tesseract>.
The Perl 5 language interpreter. More information: <https://www.perl.org>.
Interactive spell checker. More information: <http://aspell.net/>.
Copies files in and out of archives. Supports the following archive formats: cpio's custom binary, old ASCII, new ASCII, crc, HPUX binary, HPUX old ASCII, old tar, and POSIX.1 tar. More information: <https://www.gnu.org/software/cpio>.