安利一个github上面的一个神级库thefuck，Linux命令敲错了，没关系，自动纠正你的命令

landv

发布于 2019-10-23 16:12:16

1.3K0

发布于 2019-10-23 16:12:16

文章被收录于专栏：landvlandv

没错就是这么神奇，名字相当噶性，thefuck。当你命令输入错误不要怕，直接来一句fuck，自动纠正你输入的命令。

在你输入错误的命令的时候，忍俊不禁的想来一句fuck，没错你不仅可以嘴上说，命令里面可以可以来一下，他丫的就矫正了。

保证原汁原味，直接上原文。

这是库的地址https://github.com/nvbn/thefuck

The Fuck?

The Fuck?is a magnificent app, inspired by a?@liamosaur tweet, that corrects errors in previous console commands.

Is?The Fuck?too slow??Try the experimental instant mode!

More examples:

? apt-get install vim
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?

? fuck
sudo apt-get install vim [enter/↑/↓/ctrl+c]
[sudo] password for nvbn:
Reading package lists... Done
...

? git push
fatal: The current branch master has no upstream branch.
To push the current branch and set the remote as upstream, use

    git push --set-upstream origin master


? fuck
git push --set-upstream origin master [enter/↑/↓/ctrl+c]
Counting objects: 9, done.
...

? puthon
No command 'puthon' found, did you mean:
 Command 'python' from package 'python-minimal' (main)
 Command 'python' from package 'python3' (main)
zsh: command not found: puthon

? fuck
python [enter/↑/↓/ctrl+c]
Python 3.4.2 (default, Oct  8 2014, 13:08:17)
...

? git brnch
git: 'brnch' is not a git command. See 'git --help'.

Did you mean this?
    branch

? fuck
git branch [enter/↑/↓/ctrl+c]
* master

? lein rpl
'rpl' is not a task. See 'lein help'.

Did you mean this?
         repl

? fuck
lein repl [enter/↑/↓/ctrl+c]
nREPL server started on port 54848 on host 127.0.0.1 - nrepl://127.0.0.1:54848
REPL-y 0.3.1
...

If you're not afraid of blindly running corrected commands, the?require_confirmation settings?option can be disabled:

? apt-get install vim
E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?

? fuck
sudo apt-get install vim
[sudo] password for nvbn:
Reading package lists... Done
...

Requirements

python (3.4+)
pip
python-dev

Installation

On OS X, you can install?The Fuck?via?Homebrew?(or via?Linuxbrew?on Linux):

brew install thefuck

On Ubuntu / Mint, install?The Fuck?with the following commands:

sudo apt update
sudo apt install python3-dev python3-pip python3-setuptools
sudo pip3 install thefuck

On FreeBSD, install?The Fuck?with the following commands:

pkg install thefuck

On ChromeOS, install?The Fuck?using?chromebrew?with the following command:

crew install thefuck

On other systems, install?The Fuck?by using?pip:

pip install thefuck

Alternatively, you may use an OS package manager (OS X, Ubuntu, Arch).

#?It is recommended that you 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 are only available in a new shell session. To make changes immediately available, run?source ~/.bashrc?(or your shell config file like?.zshrc).

To run fixed commands without confirmation, use the?--yeah?option (or just?-y?for short, or?--hard?if you're especially frustrated):

fuck --yeah

To fix commands recursively until succeeding, use the?-r?option:

fuck -r

Updating

pip3 install thefuck --upgrade

Note: Alias functionality was changed in v1.34 of?The Fuck

How it works

The Fuck?attempts to match the previous command with a rule. If a match is found, a new command is created using the matched rule and executed. The following rules are enabled by default:

adb_unknown_command?– fixes misspelled commands like?adb logcta;
ag_literal?– adds?-Q?to?ag?when suggested;
aws_cli?– fixes misspelled commands like?aws dynamdb scan;
az_cli?– fixes misspelled commands like?az providers;
cargo?– runs?cargo build?instead of?cargo;
cargo_no_command?– fixes wrongs commands like?cargo buid;
cat_dir?– replaces?cat?with?ls?when you try to?cat?a directory;
cd_correction?– spellchecks and correct failed cd commands;
cd_mkdir?– creates directories before cd'ing into them;
cd_parent?– changes?cd..?to?cd ..;
chmod_x?– add execution bit;
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_login?– executes a?docker login?and repeats the previous command;
docker_not_command?– fixes wrong docker commands like?docker tags;
docker_image_being_used_by_container?‐ removes the container that is using the image before removing the image;
dry?– fixes repetitions like?git git push;
fab_command_not_found?– fix misspelled fabric commands;
fix_alt_space?– replaces Alt+Space with Space character;
fix_file?– opens a file with an error in your?$EDITOR;
gem_unknown_command?– fixes wrong?gem?commands;
git_add?– fixes?"pathspec 'foo' did not match any file(s) known to git.";
git_add_force?– adds?--force?to?git add <pathspec>...?when paths are .gitignore'd;
git_bisect_usage?– fixes?git bisect strt,?git bisect goood,?git bisect rset, etc. when bisecting;
git_branch_delete?– changes?git branch -d?to?git branch -D;
git_branch_exists?– offers?git branch -d foo,?git branch -D foo?or?git checkout foo?when creating a branch that already exists;
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_commit_amend?– offers?git commit --amend?after previous commit;
git_commit_reset?– offers?git reset HEAD~?after previous commit;
git_diff_no_index?– adds?--no-index?to previous?git diff?on untracked files;
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_flag_after_filename?– fixes?fatal: bad flag '...' after filename
git_help_aliased?– fixes?git help <alias>?commands replacing with the aliased command;
git_merge?– adds remote to branch names;
git_merge_unrelated?– adds?--allow-unrelated-histories?when required
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_pull_uncommitted_changes?– stashes changes before pulling and pops them afterwards;
git_push?– adds?--set-upstream origin $branch?to previous failed?git push;
git_push_different_branch_names?– fixes pushes when local brach name does not match remote branch name;
git_push_pull?– runs?git pull?when?push?was rejected;
git_push_without_commits?– Creates an initial commit if you forget and only?git add ., when setting up a new project;
git_rebase_no_changes?– runs?git rebase --skip?instead of?git rebase --continue?when there are no changes;
git_remote_delete?– replaces?git remote delete remote_name?with?git remote remove remote_name;
git_rm_local_modifications?– adds?-f?or?--cached?when you try to?rm?a locally modified file;
git_rm_recursive?– adds?-r?when you try to?rm?a directory;
git_rm_staged?– adds?-f?or?--cached?when you try to?rm?a file with staged changes
git_rebase_merge_dir?– offers?git rebase (--continue | --abort | --skip)?or removing the?.git/rebase-merge?dir when a rebase is in progress;
git_remote_seturl_add?– runs?git remote add?when?git remote set_url?on nonexistant remote;
git_stash?– stashes your local modifications before rebasing or switching branch;
git_stash_pop?– adds your local modifications before popping stash, then resets;
git_tag_force?– adds?--force?to?git tag <tagname>?when the tag already exists;
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;
go_unknown_command?– fixes wrong?go?commands, for example?go bulid;
gradle_no_task?– fixes not found or ambiguous?gradle?task;
gradle_wrapper?– replaces?gradle?with?./gradlew;
grep_arguments_order?– fixes?grep?arguments order for situations like?grep -lir . test;
grep_recursive?– adds?-r?when you try to?grep?directory;
grunt_task_not_found?– fixes misspelled?grunt?commands;
gulp_not_task?– fixes misspelled?gulp?tasks;
has_exists_script?– prepends?./?when script/binary exists;
heroku_multiple_apps?– add?--app <app>?to?heroku?commands like?heroku pg;
heroku_not_command?– fixes wrong?heroku?commands like?heroku log;
history?– tries to replace command with most similar command from history;
hostscli?– tries to fix?hostscli?usage;
ifconfig_device_not_found?– fixes wrong device names like?wlan0?to?wlp2s0;
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;
long_form_help?– changes?-h?to?--help?when the short form version is not supported
ln_no_hard_link?– catches hard link creation on directories, suggest symbolic link;
ln_s_order?– fixes?ln -s?arguments order;
ls_all?– adds?-A?to?ls?when output is empty;
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;
missing_space_before_subcommand?– fixes command with missing space like?npminstall;
mkdir_p?– adds?-p?when you try to create a directory without parent;
mvn_no_command?– adds?clean package?to?mvn;
mvn_unknown_lifecycle_phase?– fixes misspelled lifecycle phases with?mvn;
npm_missing_script?– fixes?npm?custom script name in?npm run-script <script>;
npm_run_script?– adds missing?run-script?for custom?npm?scripts;
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?– either prepends?http://?to address passed to?open?or create a new file or directory and passes it to?open;
pip_install?– fixes permission issues with?pip install?commands by adding?--user?or prepending?sudo?if necessary;
pip_unknown_command?– fixes wrong?pip?commands, for example?pip instatl/pip install;
php_s?– replaces?-s?by?-S?when trying to run a local php server;
port_already_in_use?– kills process that bound port;
prove_recursively?– adds?-r?when called with directory;
pyenv_no_such_command?– fixes wrong pyenv commands like?pyenv isntall?or?pyenv list;
python_command?– prepends?python?when you try to run non-executable/without?./?python script;
python_execute?– appends missing?.py?when executing Python files;
quotation_marks?– fixes uneven usage of?'?and?"?when containing args';
path_from_history?– replaces not found path with similar absolute path from history;
react_native_command_unrecognized?– fixes unrecognized?react-native?commands;
remove_trailing_cedilla?– remove trailling cedillas??, a common typo for european keyboard layouts;
rm_dir?– adds?-rf?when you try to remove a directory;
scm_correction?– corrects wrong scm like?hg log?to?git log;
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;
sudo_command_from_user_path?– runs commands from users?$PATH?with?sudo;
switch_lang?– switches command from your local layout to en;
systemctl?– correctly orders parameters of confusing?systemctl;
terraform_init.py?– run?terraform init?before plan or apply;
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;
unsudo?– removes?sudo?from previous command if a process refuses to run on super user privilege.
vagrant_up?– starts up the vagrant instance;
whois?– fixes?whois?command;
workon_doesnt_exists?– fixes?virtualenvwrapper?env name os suggests to create new.
yarn_alias?– fixes aliased?yarn?commands like?yarn ls;
yarn_command_not_found?– fixes misspelled?yarn?commands;
yarn_command_replaced?– fixes replaced?yarn?commands;
yarn_help?– makes it easier to open?yarn?documentation;

The following rules are enabled by default on specific platforms only:

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;
apt_list_upgradable?– helps you run?apt list --upgradable?after?apt update;
apt_upgrade?– helps you run?apt upgrade?after?apt list --upgradable;
brew_cask_dependency?– installs cask dependencies;
brew_install?– fixes formula name for?brew install;
brew_reinstall?– turns?brew install <formula>?into?brew reinstall <formula>;
brew_link?– adds?--overwrite --dry-run?if linking fails;
brew_uninstall?– adds?--force?to?brew uninstall?if multiple versions were installed;
brew_unknown_command?– fixes wrong brew commands, for example?brew docto/brew doctor;
brew_update_formula?– turns?brew update <formula>?into?brew upgrade <formula>;
dnf_no_such_command?– fixes mistyped DNF commands;
nixos_cmd_not_found?– installs apps on NixOS;
pacman?– installs app with?pacman?if it is not installed (uses?yay?or?yaourt?if available);
pacman_not_found?– fixes package name with?pacman,?yay?or?yaourt.
yum_invalid_operation?– fixes invalid?yum?calls, like?yum isntall vim;

The following commands are bundled with?The Fuck, but are 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

To add your own rule, create a file named?your-rule-name.py?in?~/.config/thefuck/rules. The rule file must contain two functions:

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

Additionally, rules can contain optional functions:

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

Rules can also contain the optional variables?enabled_by_default,?requires_output?and?priority.

Command?has three attributes:?script,?output?and?script_parts. Your rule should not change?Command.

Rules api changed in 3.0:?To access a rule's settings, import it with?from thefuck.conf import settings

settings?is a special object assembled from?~/.config/thefuck/settings.py, and values from env (see more below).

A simple example rule for running a script with?sudo:

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


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

Several?The Fuck?parameters can be changed in the file?$XDG_CONFIG_HOME/thefuck/settings.py?($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;
wait_slow_command?– max amount of time in seconds for getting previous command output if it in?slow_commands?list;
slow_commands?– list of slow commands;
num_close_matches?– maximum number of close matches to suggest, by default?3.

An 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
history_limit = 9999
wait_slow_command = 20
slow_commands = ['react-native', 'gradle']
num_close_matches = 5

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;
THEFUCK_WAIT_SLOW_COMMAND?– max amount of time in seconds for getting previous command output if it in?slow_commands?list;
THEFUCK_SLOW_COMMANDS?– list of slow commands, like?lein:gradle;
THEFUCK_NUM_CLOSE_MATCHES?– maximum number of close matches to suggest, like?5.

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'
export THEFUCK_NUM_CLOSE_MATCHES='5'

Third-party packages with rules

If you'd like to make a specific set of non-public rules, but would still like to share them with others, create a package named?thefuck_contrib_*?with the following structure:

thefuck_contrib_foo
  thefuck_contrib_foo
    rules
      __init__.py
      *third-party rules*
    __init__.py
    *third-party-utils*
  setup.py

The Fuck?will find rules located in the?rules?module.

Experimental instant mode

The default behavior of?The Fuck?requires time to re-run previous commands. When in instant mode,?The Fuck?saves time by logging output with?script, then reading the log.

Currently, instant mode only supports Python 3 with bash or zsh. zsh's autocorrect function also needs to be disabled in order for thefuck to work properly.

To enable instant mode, add?--enable-experimental-instant-mode?to the alias initialization in?.bashrc,?.bash_profile?or?.zshrc.

For example:

eval $(thefuck --alias --enable-experimental-instant-mode)

Developing

See?CONTRIBUTING.md

License MIT

Project License can be found?here.

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