fuck

Set the fuck alias to thefuck tool

$ eval "$(thefuck --alias)"

$ fuck

$ fuck --[yes|yeah|hard]

fuck [options] [command]

--help
    Displays a help message and exits.

--version
    Shows the program's version number and exits.

--alias
    Prints the shell alias definition required for proper integration.

--force-command COMMAND
    Forces the correction of a specific COMMAND instead of the last executed one.

--
    Marks the end of options; arguments following this will be treated as positional arguments.

The Fuck is a popular command-line tool that automatically corrects previous mistyped or incorrect commands. Designed to be invoked immediately after a command failure, it analyzes the user's shell history and the error message of the preceding command to suggest a probable correction.

For instance, if you type "git sttus", and it fails, typing "fuck" immediately after will likely suggest "git status". It supports a wide range of common command errors across various tools like Git, Docker, APT, pacman, and many others, significantly improving productivity by reducing the need to manually retype commands. Its intelligence comes from a collection of "rules" that detect common mistakes and propose fixes. The user can then choose to apply the suggested fix, ignore it, or quit.

Dependency on Python: Requires Python 3 to be installed on the system.

Shell Integration: Needs proper shell alias setup (e.g., in .bashrc, .zshrc) to function correctly, typically as eval $(thefuck --alias).

Potential for Incorrect Suggestions: While generally accurate, it might occasionally suggest a wrong command, requiring user vigilance.

Security Considerations: As it executes commands, ensure rules are from trusted sources.

Not a Standard Utility: It's an external tool and not part of core Linux distributions; it must be installed separately.

The Fuck is typically installed via pip, the Python package installer. The command for installation is usually pip install thefuck. After installation, shell-specific setup (e.g., adding an alias to your shell configuration file) is required for seamless use.

Users can customize The Fuck's behavior through a configuration file, typically located at ~/.thefuck/settings.py. This file allows specifying which rules to enable or disable, setting up priority for rules, defining custom commands, and configuring other aspects like auto-correction and logging.

When fuck is executed, it retrieves the last command from the shell's history and analyzes its exit status. It then iterates through its collection of predefined "rules" (Python functions) to identify a potential correction. Each rule attempts to fix a specific type of error (e.g., git typos, sudo prefix, missing command arguments). If a rule finds a valid correction, it presents it to the user, who can then accept or reject it.

The Fuck was created by Vladimir Iakovlev and gained significant popularity on GitHub. Its development aimed to alleviate the frustration of common command-line typos and syntax errors. Since its inception, it has evolved with community contributions, adding support for more commands, shells, and customizable rules. Its utility quickly resonated with CLI users, making it one of the most starred projects for command-line productivity. The project's continuous development focuses on expanding its rule set and improving its intelligence for suggesting relevant corrections based on various error messages and contexts.

history(1), alias(1), bash(1), zsh(1)