V2EX = way to explore
V2EX 是一个关于分享和探索的地方
现在注册
已注册用户请  登录
xlinux
V2EX  ›  Vim

请教 Debian 12.6 的 vi 和 vim.tiny 指向同一文件却执行效果不同疑问

  •  
  •   xlinux · 95 天前 · 1727 次点击
    这是一个创建于 95 天前的主题,其中的信息可能已经有所发展或是发生改变。

    执行 vi 和执行 vim.tiny 为什么是两种不同的模式? 这两个不是指向的是同一个文件 /usr/bin/vim.tiny 吗? 不同的表现在于:

    • 无法使用退格键 backspace
    • 方向键变字母

    以下是系统的一些信息:

    root@debian:~# whereis vi
    vi: /usr/bin/vi /usr/share/man/man1/vi.1.gz
    
    root@debian:~# whereis vim.tiny 
    vim.tiny: /usr/bin/vim.tiny
    
    root@debian:~# ls -la /usr/bin/ | grep vi
    -rwxr-xr-x  1 root root      14560 Sep 16  2023 dbus-update-activation-environment
    lrwxrwxrwx  1 root root         23 May  4  2023 rview -> /etc/alternatives/rview
    -rwxr-xr-x  1 root root      18808 Jun 16 05:44 systemd-detect-virt
    lrwxrwxrwx  1 root root         20 May  4  2023 vi -> /etc/alternatives/vi
    lrwxrwxrwx  1 root root         22 May  4  2023 view -> /etc/alternatives/view
    -rwxr-xr-x  1 root root    1629584 May  4  2023 vim.tiny
    
    root@debian:~# ls -la /etc/alternatives/ | grep vi
    lrwxrwxrwx  1 root root   17 May  4  2023 ex -> /usr/bin/vim.tiny
    lrwxrwxrwx  1 root root   28 May  4  2023 ex.1.gz -> /usr/share/man/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 ex.da.1.gz -> /usr/share/man/da/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 ex.de.1.gz -> /usr/share/man/de/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 ex.fr.1.gz -> /usr/share/man/fr/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 ex.it.1.gz -> /usr/share/man/it/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 ex.ja.1.gz -> /usr/share/man/ja/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 ex.pl.1.gz -> /usr/share/man/pl/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 ex.ru.1.gz -> /usr/share/man/ru/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 ex.tr.1.gz -> /usr/share/man/tr/man1/vim.1.gz
    lrwxrwxrwx  1 root root   17 May  4  2023 rview -> /usr/bin/vim.tiny
    lrwxrwxrwx  1 root root   17 May  4  2023 vi -> /usr/bin/vim.tiny
    lrwxrwxrwx  1 root root   28 May  4  2023 vi.1.gz -> /usr/share/man/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 vi.da.1.gz -> /usr/share/man/da/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 vi.de.1.gz -> /usr/share/man/de/man1/vim.1.gz
    lrwxrwxrwx  1 root root   17 May  4  2023 view -> /usr/bin/vim.tiny
    lrwxrwxrwx  1 root root   28 May  4  2023 view.1.gz -> /usr/share/man/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 view.da.1.gz -> /usr/share/man/da/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 view.de.1.gz -> /usr/share/man/de/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 view.fr.1.gz -> /usr/share/man/fr/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 view.it.1.gz -> /usr/share/man/it/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 view.ja.1.gz -> /usr/share/man/ja/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 view.pl.1.gz -> /usr/share/man/pl/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 view.ru.1.gz -> /usr/share/man/ru/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 view.tr.1.gz -> /usr/share/man/tr/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 vi.fr.1.gz -> /usr/share/man/fr/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 vi.it.1.gz -> /usr/share/man/it/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 vi.ja.1.gz -> /usr/share/man/ja/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 vi.pl.1.gz -> /usr/share/man/pl/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 vi.ru.1.gz -> /usr/share/man/ru/man1/vim.1.gz
    lrwxrwxrwx  1 root root   31 May  4  2023 vi.tr.1.gz -> /usr/share/man/tr/man1/vim.1.gz
    
    root@debian:~# ls -la /etc/vim
    total 16
    drwxr-xr-x  2 root root 4096 Aug 31 05:17 .
    drwxr-xr-x 69 root root 4096 Aug 30 23:37 ..
    -rw-r--r--  1 root root 2553 May  4  2023 vimrc
    -rw-r--r--  1 root root  662 May  4  2023 vimrc.tiny
    
    root@debian:~# cat /etc/vim/vimrc
    " $VIMRUNTIME refers to the versioned system directory where Vim stores its
    " system runtime files -- /usr/share/vim/vim<version>.
    "
    " Vim will load $VIMRUNTIME/defaults.vim if the user does not have a vimrc.
    " This happens after /etc/vim/vimrc(.local) are loaded, so it will override
    " any settings in these files.
    "
    " If you don't want that to happen, uncomment the below line to prevent
    " defaults.vim from being loaded.
    " let g:skip_defaults_vim = 1
    "
    " If you would rather _use_ default.vim's settings, but have the system or
    " user vimrc override its settings, then uncomment the line below.
    " source $VIMRUNTIME/defaults.vim
    
    " All Debian-specific settings are defined in $VIMRUNTIME/debian.vim and
    " sourced by the call to :runtime you can find below.  If you wish to change
    " any of those settings, you should do it in this file or
    " /etc/vim/vimrc.local, since debian.vim will be overwritten everytime an
    " upgrade of the vim packages is performed. It is recommended to make changes
    " after sourcing debian.vim so your settings take precedence.
    
    runtime! debian.vim
    
    " Uncomment the next line to make Vim more Vi-compatible
    " NOTE: debian.vim sets 'nocompatible'.  Setting 'compatible' changes
    " numerous options, so any other options should be set AFTER changing
    " 'compatible'.
    "set compatible
    
    " Vim5 and later versions support syntax highlighting. Uncommenting the next
    " line enables syntax highlighting by default.
    "syntax on
    
    " If using a dark background within the editing area and syntax highlighting
    " turn on this option as well
    "set background=dark
    
    " Uncomment the following to have Vim jump to the last position when
    " reopening a file
    "au BufReadPost * if line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g'\"" | endif
    
    " Uncomment the following to have Vim load indentation rules and plugins
    " according to the detected filetype.
    "filetype plugin indent on
    
    " The following are commented out as they cause vim to behave a lot
    " differently from regular Vi. They are highly recommended though.
    "set showcmd		" Show (partial) command in status line.
    "set showmatch		" Show matching brackets.
    "set ignorecase		" Do case insensitive matching
    "set smartcase		" Do smart case matching
    "set incsearch		" Incremental search
    "set autowrite		" Automatically save before commands like :next and :make
    "set hidden		" Hide buffers when they are abandoned
    "set mouse=a		" Enable mouse usage (all modes)
    
    " Source a global configuration file if available
    if filereadable("/etc/vim/vimrc.local")
      source /etc/vim/vimrc.local
    endif
    
    root@debian:~# cat /etc/vim//vimrc.tiny 
    " Vim configuration file, in effect when invoked as "vi". The aim of this
    " configuration file is to provide a Vim environment as compatible with the
    " original vi as possible. Note that ~/.vimrc configuration files as other
    " configuration files in the runtimepath are still sourced.
    " When Vim is invoked differently ("vim", "view", "evim", ...) this file is
    " _not_ sourced; /etc/vim/vimrc and/or /etc/vim/gvimrc are.
    
    " Debian system-wide default configuration Vim
    set runtimepath=~/.vim,/var/lib/vim/addons,/usr/share/vim/vimfiles,/usr/share/vim/vim90,/usr/share/vim/vimfiles/after,/var/lib/vim/addons/after,~/.vim/after
    
    set compatible
    
    " vim: set ft=vim:
    
    第 1 条附言  ·  95 天前
    好多,谢谢各位大佬。
    15 条回复    2024-09-02 10:39:29 +08:00
    ho121
        1
    ho121  
       95 天前 via Android
    vi compatibility mode
    ho121
        2
    ho121  
       95 天前 via Android
    xlinux
        3
    xlinux  
    OP
       95 天前
    @ho121 为什么同一个执行文件一个是 compatible 模式?是 nocompatible 模式?
    ho121
        4
    ho121  
       95 天前 via Android
    @xlinux 估计是设计如此或者向前兼容吧,就像很多系统 bash 和 sh 是一个文件,执行 bash 进入的是 bash ,执行 sh 进入的是 POSIX shell
    kkocdko
        5
    kkocdko  
       95 天前   ❤️ 2
    echo "source /etc/vim/vimrc" > /etc/vim/vimrc.tiny
    xlinux
        6
    xlinux  
    OP
       95 天前
    @kkocdko 哥,展开说说
    msg7086
        7
    msg7086  
       95 天前   ❤️ 1
    @xlinux 同一个执行文件,根据被调用的文件名,可以产生不同的行为。
    1423
        8
    1423  
       95 天前   ❤️ 2
    busybox
    xlinux
        9
    xlinux  
    OP
       95 天前
    @msg7086 请教一下“根据被调用的文件名,可以产生不同的行为。”这个一步我可以在哪个地方查看它是怎么实现的?这个是 vim 的实现还是系统的设置?
    ho121
        10
    ho121  
       95 天前 via Android   ❤️ 1
    @xlinux 单说“根据被调用的文件名,可以产生不同的行为。”,每个程序都能获得自己启动的路径、命令和参数。根据启动的命令不同,执行不同的逻辑,这个很容易实现。比较典型的比如 busybox 。

    vim 的话,我试了试不是所有系统执行 vi 都自动进入兼容模式,可能不同系统编译 vim 的参不同,或者内置的配置不同。
    winzkh
        11
    winzkh  
       95 天前   ❤️ 1
    @xlinux #9 获取到的第一个参数就是启动命令
    ```c
    #include <stdio.h>

    int main(int argc, char *argv[]) {
    printf("command: %s\n", argv[0]);
    return 0;
    }
    ```
    vk42
        12
    vk42  
       95 天前   ❤️ 1
    lz 可以去看下 busybox 的源码,一个可执行文件,通过建立不同名的符号链接来实现不同的功能比如 ls, ps 等
    Kobayashi
        13
    Kobayashi  
       94 天前 via Android   ❤️ 1
    你搜搜 busybox 如何 link 的看看
    guanzhangzhang
        14
    guanzhangzhang  
       94 天前   ❤️ 1
    busybox 就是一个二进制根据软链不同的名字执行不同的命令,这方面不单单是 c 语言,其他语言也可以做到的
    LoliconInside
        15
    LoliconInside  
       94 天前
    Multi-Call Binary 了解一下
    关于   ·   帮助文档   ·   博客   ·   API   ·   FAQ   ·   实用小工具   ·   5656 人在线   最高记录 6679   ·     Select Language
    创意工作者们的社区
    World is powered by solitude
    VERSION: 3.9.8.5 · 27ms · UTC 03:35 · PVG 11:35 · LAX 19:35 · JFK 22:35
    Developed with CodeLauncher
    ♥ Do have faith in what you're doing.