thefuck 3.7

Requirements

• python (2.7+ or 3.3+)

• pip

• python-dev

Installation [experimental]

On Ubuntu and OS X you can install The Fuck with installation script:

wget -O - https://raw.githubusercontent.com/nvbn/thefuck/master/install.sh | sh - && $0

Manual installation

Install The Fuck with pip:

sudo -H pip install thefuck

Or using an OS package manager (OS X, Ubuntu, Arch).

You should place this command in your .bash_profile, .bashrc, .zshrc or other startup script:

eval "$(thefuck --alias)"
# You can use whatever you want as an alias, like for Mondays:
eval "$(thefuck --alias FUCK)"

Or in your shell config (Bash, Zsh, Fish, Powershell, tcsh).

Changes will be available only in a new shell session. To make them available immediately, run source ~/.bashrc (or your shell config file like .zshrc).

Update

sudo pip install thefuck --upgrade

Aliases changed in 1.34.

How it works

The Fuck tries to match a rule for the previous command, creates a new command using the matched rule and runs it. Rules enabled by default are as follows:

• cargo – runs cargo build instead of cargo;

• cargo_no_command – fixes wrongs commands like cargo buid;

• cd_correction – spellchecks and correct failed cd commands;

• cd_mkdir – creates directories before cd’ing into them;

• cd_parent – changes cd.. to cd ..;

• composer_not_command – fixes composer command name;

• cp_omitting_directory – adds -a when you cp directory;

• cpp11 – adds missing -std=c++11 to g++ or clang++;

• dirty_untar – fixes tar x command that untarred in the current directory;

• dirty_unzip – fixes unzip command that unzipped in the current directory;

• django_south_ghost – adds --delete-ghost-migrations to failed because ghosts django south migration;

• django_south_merge – adds --merge to inconsistent django south migration;

• docker_not_command – fixes wrong docker commands like docker tags;

• dry – fixes repetitions like git git push;

• fix_alt_space – replaces Alt+Space with Space character;

• fix_file – opens a file with an error in your $EDITOR;

• git_add – fixes “pathspec ‘foo’ did not match any file(s) known to git.”;

• git_branch_delete – changes git branch -d to git branch -D;

• git_branch_list – catches git branch list in place of git branch and removes created branch;

• git_checkout – fixes branch name or creates new branch;

• git_diff_staged – adds --staged to previous git diff with unexpected output;

• git_fix_stash – fixes git stash commands (misspelled subcommand and missing save);

• git_help_aliased – fixes git help <alias> commands replacing with the aliased command;

• git_not_command – fixes wrong git commands like git brnch;

• git_pull – sets upstream before executing previous git pull;

• git_pull_clone – clones instead of pulling when the repo does not exist;

• git_push – adds --set-upstream origin $branch to previous failed git push;

• git_push_pull – runs git pull when push was rejected;

• git_rm_recursive – adds -r when you try to rm a directory;

• git_remote_seturl_add – runs git remote add when git remote set_url on nonexistant remote;

• git_stash – stashes you local modifications before rebasing or switching branch;

• git_two_dashes – adds a missing dash to commands like git commit -amend or git rebase -continue;

• go_run – appends .go extension when compiling/running Go programs;

• grep_arguments_order – fixes grep arguments order for situations like grep -lir . test;

• grep_recursive – adds -r when you trying to grep directory;

• gulp_not_task – fixes misspelled gulp tasks;

• has_exists_script – prepends ./ when script/binary exists;

• heroku_not_command – fixes wrong heroku commands like heroku log;

• history – tries to replace command with most similar command from history;

• java – removes .java extension when running Java programs;

• javac – appends missing .java when compiling Java files;

• lein_not_task – fixes wrong lein tasks like lein rpl;

• ln_no_hard_link – catches hard link creation on directories, suggest symbolic link;

• ls_lah – adds -lah to ls;

• man – changes manual section;

• man_no_space – fixes man commands without spaces, for example mandiff;

• mercurial – fixes wrong hg commands;

• mkdir_p – adds -p when you trying to create directory without parent;

• mvn_no_command – adds clean package to mvn;

• mvn_unknown_lifecycle_phase – fixes misspelled lifecycle phases with mvn;

• npm_wrong_command – fixes wrong npm commands like npm urgrade;

• no_command – fixes wrong console commands, for example vom/vim;

• no_such_file – creates missing directories with mv and cp commands;

• open – prepends http to address passed to open;

• pip_unknown_command – fixes wrong pip commands, for example pip instatl/pip install;

• python_command – prepends python when you trying to run not executable/without ./ python script;

• python_execute – appends missing .py when executing Python files;

• quotation_marks – fixes uneven usage of ' and " when containing args’;

• rm_dir – adds -rf when you trying to remove directory;

• sed_unterminated_s – adds missing ‘/’ to sed’s s commands;

• sl_ls – changes sl to ls;

• ssh_known_hosts – removes host from known_hosts on warning;

• sudo – prepends sudo to previous command if it failed because of permissions;

• switch_lang – switches command from your local layout to en;

• systemctl – correctly orders parameters of confusing systemctl;

• test.py – runs py.test instead of test.py;

• touch – creates missing directories before “touching”;

• tsuru_login – runs tsuru login if not authenticated or session expired;

• tsuru_not_command – fixes wrong tsuru commands like tsuru shell;

• tmux – fixes tmux commands;

• unknown_command – fixes hadoop hdfs-style “unknown command”, for example adds missing ‘-’ to the command on hdfs dfs ls;

• vagrant_up – starts up the vagrant instance;

• whois – fixes whois command.

Enabled by default only on specific platforms:

• apt_get – installs app from apt if it not installed (requires python-commandnotfound / python3-commandnotfound);

• apt_get_search – changes trying to search using apt-get with searching using apt-cache;

• apt_invalid_operation – fixes invalid apt and apt-get calls, like apt-get isntall vim;

• brew_install – fixes formula name for brew install;

• brew_unknown_command – fixes wrong brew commands, for example brew docto/brew doctor;

• brew_upgrade – appends --all to brew upgrade as per Homebrew’s new behaviour;

• pacman – installs app with pacman if it is not installed (uses yaourt if available);

• pacman_not_found – fixes package name with pacman or yaourt.

Bundled, but not enabled by default:

• git_push_force – adds --force-with-lease to a git push (may conflict with git_push_pull);

• rm_root – adds --no-preserve-root to rm -rf / command.

Creating your own rules

For adding your own rule you should create your-rule-name.py in ~/.config/thefuck/rules. The rule should contain two functions:

match(command: Command) -> bool
get_new_command(command: Command) -> str | list[str]

Also the rule can contain an optional function

side_effect(old_command: Command, fixed_command: str) -> None

and optional enabled_by_default, requires_output and priority variables.

Command has three attributes: script, stdout and stderr.

Rules api changed in 3.0: For accessing settings in rule you need to import it with from thefuck.conf import settings. settings is a special object filled with ~/.config/thefuck/settings.py and values from env (see more below).

Simple example of the rule for running script with sudo:

def match(command):
    return ('permission denied' in command.stderr.lower()
            or 'EACCES' in command.stderr)


def get_new_command(command):
    return 'sudo {}'.format(command.script)

# Optional:
enabled_by_default = True

def side_effect(command, fixed_command):
    subprocess.call('chmod 777 .', shell=True)

priority = 1000  # Lower first, default is 1000

requires_output = True

More examples of rules, utility functions for rules, app/os-specific helpers.

Settings

The Fuck has a few settings parameters which can be changed in $XDG_CONFIG_HOME/thefuck/settings.py ($XDG_CONFIG_HOME defaults to ~/.config):

• rules – list of enabled rules, by default thefuck.conf.DEFAULT_RULES;

• exclude_rules – list of disabled rules, by default [];

• require_confirmation – requires confirmation before running new command, by default True;

• wait_command – max amount of time in seconds for getting previous command output;

• no_colors – disable colored output;

• priority – dict with rules priorities, rule with lower priority will be matched first;

• debug – enables debug output, by default False;

• history_limit – numeric value of how many history commands will be scanned, like 2000;

• alter_history – push fixed command to history, by default True.

Example of settings.py:

rules = ['sudo', 'no_command']
exclude_rules = ['git_push']
require_confirmation = True
wait_command = 10
no_colors = False
priority = {'sudo': 100, 'no_command': 9999}
debug = False

Or via environment variables:

• THEFUCK_RULES – list of enabled rules, like DEFAULT_RULES:rm_root or sudo:no_command;

• THEFUCK_EXCLUDE_RULES – list of disabled rules, like git_pull:git_push;

• THEFUCK_REQUIRE_CONFIRMATION – require confirmation before running new command, true/false;

• THEFUCK_WAIT_COMMAND – max amount of time in seconds for getting previous command output;

• THEFUCK_NO_COLORS – disable colored output, true/false;

• THEFUCK_PRIORITY – priority of the rules, like no_command=9999:apt_get=100, rule with lower priority will be matched first;

• THEFUCK_DEBUG – enables debug output, true/false;

• THEFUCK_HISTORY_LIMIT – how many history commands will be scanned, like 2000;

• THEFUCK_ALTER_HISTORY – push fixed command to history true/false.

For example:

export THEFUCK_RULES='sudo:no_command'
export THEFUCK_EXCLUDE_RULES='git_pull:git_push'
export THEFUCK_REQUIRE_CONFIRMATION='true'
export THEFUCK_WAIT_COMMAND=10
export THEFUCK_NO_COLORS='false'
export THEFUCK_PRIORITY='no_command=9999:apt_get=100'
export THEFUCK_HISTORY_LIMIT='2000'

Developing

Install The Fuck for development:

pip install -r requirements.txt
python setup.py develop

Run unit tests:

py.test

Run unit and functional tests (requires docker):

py.test --enable-functional

For sending package to pypi:

sudo apt-get install pandoc
./release.py

License MIT

Project License can be found here.