The evolution of unix → linux → open source technologies in IT
Field notes and tutorials on the Linux/Unix command line.
Local AI Models on a Jetson Nano
You don't need a powerful machine to run AI locally — configure a Jetson Nano board and run your first local model.
Bash Shortcuts & Built-ins
Work faster in Bash — line-editing shortcuts, history tricks, and the built-ins every script depends on.
macOS Terminal & Zsh
Zsh is the default shell on macOS — pbcopy, brew, defaults, plus the zsh features Bash users are missing.
Other Shells: fish, dash, ksh, tcsh
Beyond bash and zsh — discover which shells your system has, and what fish, dash, ksh and tcsh do differently.
Gzip, Bzip, Zip
Compression utilities compared — gzip, bzip2, zip — plus tar.gz file rollers for bundling many files as one.
Command Chaining
Run multiple commands in sequence — unconditionally with ;, on success with &&, or on failure with ||.
Linux Redirection and Pipes
Control input and output — redirect with > and >>, and connect commands together with the pipe | operator.
Basic Linux/Unix Commands
51 essential commands every Linux/Unix user should know — from tty and pwd to chmod, ssh and fdisk.