command-not-found.com

fc-list

List available fonts installed on the system. More information: <https://manned.org/fc-list>.

fd

An alternative to find. Aims to be faster and easier to use than find. More information: <https://github.com/sharkdp/fd>.

qemu-img

Tool for Quick Emulator Virtual HDD image creation and manipulation. More information: <https://qemu.readthedocs.io/en/latest/tools/qemu-img.html>.

gitk

A graphical Git repository browser. More information: <https://git-scm.com/docs/gitk>.

shred

Overwrite files to securely delete data. More information: <https://www.gnu.org/software/coreutils/shred>.

vimdiff

Open up two or more files in vim and show the differences between them. See also: vim, vimtutor, nvim. More information: <https://www.vim.org>.

aria2c

Fast download utility. Supports HTTP(S), FTP, SFTP, BitTorrent, and Metalink. More information: <https://aria2.github.io>.

ltrace

Display dynamic library calls of a process. More information: <https://manned.org/ltrace>.