This is a collection of useful applications that can be used in the terminal without a graphical desktop. These are all available in the Debian main repository.

• SSH - secure shell for remote computers
• Bash
• Zsh
• Tmux - Terminal multiplexing

• Midnight Commander - Terminal file navigation and FTP/SFTP
• vifm
• xfte/sfte (apt install fte-xwindow fte-terminal)

• nano
• emacs
• vim
• neovim
• joe
• mcedit - Like DOS Edit, let's you resize text windows and use mouse
• fp (apt install fp-ide) FreePascal IDE

• Mutt - Email client
• Profanity - XMPP chat client
• Irssi - IRC chat client

• ELinks - Terminal web browsing and BitTorrent
• links
• lynx
• One-line HTTP servers
• cURL
• wget

• How to write a good CLI application
• Dialog - terminal user interface generator

• ffmpeg - Swiss army knife for audio/video
• beep - Make PC speaker beep
• cmus - Music player
• id3tool - View/edit audio meta tags

• neofetch - Provides system information like OS, kernel, CPU, GPU, memory, etc.

• Terminal ASCII art with figlets and cowsay
• sed
• awk
• grep
• cut
• head, tail
• less, more