Make Your Linux Terminal Roast You: Install and Customize Bash‑Insulter

Linux users can add a bit of humor to their workflow with Bash‑Insulter , an open‑source CLI utility that replies with random taunts whenever a mistyped command triggers the command not found error.

Installation

Clone the repository from GitHub and copy the script into the system directory:

git clone https://github.com/hkbakke/bash-insulter.git bash-insulter

sudo cp bash-insulter/src/bash.command-not-found /etc/

Append a check for the script to /etc/bash.bashrc so it runs for every new shell session:

# Bash Insulter
if [ -f /etc/bash.command-not-found ]; then
    . /etc/bash.command-not-found
fi

Activate the changes immediately:

sudo source /etc/bash.bashrc

Usage

After installation, any unknown command will trigger a random insult, for example:

[user@host ~]$ sldkf
  Why are you doing this to me?!
-bash: sldkf: command not found

Configuration

The messages are stored in the bash.command-not-found file you copied to /etc. Edit this file to add, remove, or translate messages. A typical definition looks like:

print_message() {
    local messages
    messages=(
        "Boooo!"
        "Don't you know anything?"
        "RTFM!"
        "Haha, n00b!"
        "Wow! That was impressively wrong!"
        "Pathetic"
        # ... more messages
    )
    # logic to pick a random entry
}

You can replace the insults with encouraging phrases, e.g., 加油哦，棒棒哒，你行的, or write the messages in Chinese.

Notes

The tool works on any Linux distribution that uses Bash as the default shell. Because it modifies system files under /etc, root privileges are required for installation and configuration.