Tag: shell scripting

Bash for loops sequential counting

Master bash for loops, while loops, and seq for sequential counting — iterate over files, ranges, and arrays without losing your mind.

Why You Should Switch to ZShell (zsh)

Switch your default shell to zsh on Linux — why zsh beats bash, installation, Oh My Zsh setup, essential plugins, and the gotcha that still catches everyone.

Shell Setup in 2026: Starship, Plugins, Fish

Oh My Zsh had its moment. Here's the 2026 shell setup: Starship prompt, three killer plugins, and when to consider Fish or Nushell.

Systemd Socket Activation: Start Services Only When Someone Actually Knocks

Learn systemd socket activation to start services on-demand, save RAM, and cut boot time. Includes .socket unit files, real examples, and testing with systemd-socket-activate.

Techniques for Writing Robust, Reliable Bash Scripts

Write bash scripts that don't silently fail — set -euo pipefail, error handling, input validation, and logging patterns for production scripts.

Preserving Bash History in Multiple Terminal Windows

By default bash history is lost across multiple terminal sessions. Fix it with HISTAPPEND and PROMPT_COMMAND so nothing gets overwritten.

Differences Between nohup, disown, and & in Linux

nohup, disown, and & all keep processes running after logout — but they work differently. Here's which one to reach for and why.

Understanding printf vs echo in Bash

echo is convenient but inconsistent across systems; printf is portable and precise — know when to use each and avoid the gotchas.

Linux Bash Tips and Tricks pt1

Bash tricks that save keystrokes — history expansion, brace expansion, process substitution, and the shortcuts your fingers will thank you for.