A Lightweight Zsh Utility for Instant Terminal Error Cleanup and Command Recovery
Term-Undo is a lightweight Zsh utility designed to simplify terminal error recovery by clearing unwanted multi-line error output and restoring a previously entered command to the input buffer.
It aims to provide a clean and efficient recovery workflow without duplicating prompts, disrupting the existing Zsh configuration, or deleting command history.
Quick Usage
Term-Undo provides two ways to initiate command recovery.
| Method | Description |
|---|---|
| Keyboard Shortcut | Press Alt + U to trigger terminal cleanup and command recovery. |
| Command Alias | Type undo in your terminal to invoke the recovery workflow. |
Tip: Recover your previous command without manually retyping it, where supported by the current shell state and implementation.
One-Line Installation
Install Term-Undo with a single command in your Zsh terminal.
Installation Command
curl -fsSL https://raw.githubusercontent.com/nahid-mahmud555/term-undo/main/install.sh | bash
Reload Zsh Configuration
After installation, reload your Zsh configuration:
source ~/.zshrc
This applies the configuration changes to the current shell session.
📝 Note for Root Users
Standard users and the superuser (root) maintain separate home directories and shell configuration files (.zshrc).
-
Standard User:
/home/username/.zshrc -
Root User:
/root/.zshrc
Installing Term-Undo under a standard user account does not automatically enable it in the root environment.
If your root terminal defaults to Bash, switch to a Zsh session before running the installation commands.
📝 Note for Root Users
Standard users and superusers (root) maintain separate home directories and shell configuration files (.zshrc).
-
Standard User:
/home/username/.zshrc -
Root User:
/root/.zshrc
Installing Term-Undo under a standard user account does not automatically enable it in the root environment.
If your root terminal defaults to Bash, switch to a Zsh session before running the installation commands.
Installation for Root Users
Run the following commands in order:
Step 1 — Switch to Root Privileges
sudo -i
Step 2 — Start a Zsh Session
zsh
Step 3 — Install Term-Undo
curl -fsSL https://raw.githubusercontent.com/nahid-mahmud555/term-undo/main/install.sh | bash
Step 4 — Reload Root's Zsh Configuration
source ~/.zshrc
Note: Each command is provided separately for easy copying. Make sure you execute them sequentially in the same root session. Term-Undo must be installed and configured separately for the root user and standard user.
Security note: Review the installation script before executing a remotely downloaded script through a shell.
Key Features
Instant Error Cleanup
Uses terminal control sequences to remove unwanted error output. The number of lines cleared depends on the implementation and the terminal layout.
Command Buffer Restoration
Designed to restore a previously entered command to the Zsh input buffer, allowing the command to be edited before execution.
Two-Line Prompt Compatibility
Designed with two-line Zsh prompts in mind, including configurations commonly used in Kali Linux.
Command History Preservation
Designed to preserve the existing .zsh_history file without deleting previously recorded commands.
Cross-Platform Support
Targets native Linux environments and Windows Subsystem for Linux (WSL/WSL2) running a compatible Zsh configuration.
Simple Recovery Workflow
Provides keyboard-shortcut and command-based recovery options to reduce manual terminal cleanup and command re-entry.
Supported Environments
Term-Undo is intended for the following environments, subject to compatibility testing.
| Category | Environments |
|---|---|
| Linux Distributions | Kali Linux, Ubuntu, Debian, Arch Linux, Fedora |
| Windows | WSL and WSL2 |
| Shell | Zsh |
| User Contexts | Standard user and root |
| Prompt Layout | Two-line Zsh prompts |
Compatibility may vary depending on the Zsh version, terminal emulator, key-binding configuration, and installation environment.
How It Works
The intended recovery workflow consists of the following steps:
- Execute a command in your Zsh terminal.
- If the command produces unwanted multi-line error output, initiate Term-Undo using
Alt + Uor theundocommand. - Term-Undo runs its configured terminal cleanup and command-recovery logic.
- The previous command is restored to the input buffer when recovery is supported by the current implementation.
- Review, edit, or execute the restored command as needed.
Result: A cleaner terminal and a more convenient command-recovery workflow.
Requirements
- Zsh shell.
-
curlfor the one-line installation method. - An internet connection during installation.
- A terminal emulator compatible with the configured keyboard shortcut and terminal control sequences.
Repository
Project: Term-Undo v6.0
Author and Maintainer: Nahid Mahmud
GitHub Profile: @nahid-mahmud555
Repository: nahid-mahmud555/term-undo
Installation Script: install.sh
📅 Release Info
- Date: 24 Oct 2026
- Environment: Kali Linux (Zsh)
Term-Undo is Launching on Product Hunt!
We are excited to announce that Term-Undo v6.0 is officially scheduled to launch on Product Hunt!
📅 Launch Date: October 26th, 2026 @ 12:01 AM PDT
🔗 Product Hunt Page: Term-Undo on Product Hunt
🔔 Support the Launch: Please visit our Product Hunt Page and click "Notify Me" to support us as soon as we go live!
License
Term-Undo is intended to be released as an open-source project under the MIT License.
See the repository's LICENSE file for the complete license terms.
Final Statement
Term-Undo — Clean Terminal. Quick Recovery.
A lightweight utility designed to make Zsh command recovery simpler, cleaner, and more efficient.
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