whoami

the basics

rmstar.sh is a personal blog about Unix systems, shell scripting, low-level programming, and whatever other rabbit holes consume my weekends. No ads, no tracking, no JavaScript frameworks. Just text and a love of the command line.

the name

Named after the shell one-liner that strikes fear into the hearts of sysadmins everywhere: rm *. It's a reminder that power and caution must coexist — and that backups are not optional.

topics covered

• Bash / POSIX shell scripting
• Linux internals & /proc / /sys
• Networking from scratch (TCP, DNS, TLS)
• Systems programming in C & Go
• Dotfile archaeology & tooling
• Security & CTF write-ups
• The occasional rant about software complexity

tools of the trade

• Neovim (reformed Vim user)
• tmux + zsh
• Arch Linux (daily driver)
• Alpine Linux (servers)
• Git, obviously
• A very old ThinkPad