命令修正-thefuck

段连洁 -

介绍

linux 程序员,属于面向命令行的一类,经常要记忆各种终端命令,往往输错的情况下,导致各种问题,并极大影响心情,所以 thefuck出现了.

  • 基于Python

安装方式

mac

brew install thefuck

Ubuntu

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

其他环境

pip install thefuck

环境变量

在.bashrc 或者 .bash_profile或者.zshrc中添加

eval "$(thefuck --alias)"

常用使用场景

  • apt-get
➜ 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
➜ 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.
...
  • python
➜ 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)
...
  • repl
➜ 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
...

命令修正

  • ag_literal – adds -Q to ag when suggested;
  • aws_cli – fixes misspelled commands like aws dynamdb scan;
  • 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 ..;
  • 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_not_command – fixes wrong docker commands like docker tags;
  • 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_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_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;
  • 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 trying 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_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;
  • 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 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_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_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;
  • 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';
  • 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 ç, a common typo for european keyboard layouts;
  • rm_dir – adds -rf when you trying to remove 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;
  • 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;
  • 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;

特定平台开启的功能:

  • 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_cask_dependency – installs cask dependencies;
  • brew_install – fixes formula name for brew install;
  • 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;
  • pacman – installs app with pacman if it is not installed (uses yaourt if available);
  • pacman_not_found – fixes package name with pacman or yaourt.

隐藏没有开启的功能:

  • 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.

自定义规则

在~/.config/thefuck/rules目录中添加自定义规则的文件your-rule-name.py.

文件中必须包含两个功能

  • match(command: Command) -> bool
  • get_new_command(command: Command) -> str | list[str]
# 是否匹配正确的命令
def match(command):
    return ('permission denied' in command.output.lower()
            or 'EACCES' in command.output)


# 修正的命令, 此修正为 命令前加 sudo
def get_new_command(command):
    return 'sudo {}'.format(command.script)

# Optional: 默认是否开启
enabled_by_default = True

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

# 优先级，数字越大优先级越低
priority = 1000  # Lower first, default is 1000

# 是否需要输出
requires_output = True

设置文件 ~/.config