Environment & Shell Customization (Aliases/Functions/.Bashrc)

Keep your shell history clean by ignoring the noise

🧩 The Challenge

Everyone has those days where you run a simple command like ls or cd thirty times in a row, and suddenly your bash history is a useless wall of junk. Digging for that one complex regex or pipe chain you ran yesterday becomes a total nightmare because it’s buried under a mountain of navigation commands.

💡 The Fix

You can tell your shell to ignore repetitive commands or specific noise patterns entirely. It makes hitting that up-arrow key infinitely more productive.

HISTCONTROL=ignoreboth:erasedups
export HISTCONTROL

⚙️ Why It Works

Setting this variable forces bash to ignore lines starting with a space and strips out duplicate entries immediately, so your history file only keeps the last instance of any command. It’s a simple change that stops your ~/.bash_history from bloating up with redundant entries.

🚀 Pro-Tip: Append this to your .bashrc today and stop fighting your own history file.

Linux Tips & Tricks | © ngelinux.com | 7/31/2026