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tag-icon • tag-icon command-line bash scripts auto-completion
编辑

假设我有一个简单的/usr/local/bin/myscript脚本

#!/bin/bash

case "$1" in
    start)
        start something
        ;;
    stop)
        stop something
        ;;
    status)
        status of something
        ;;
    *)
      echo "unknown option $1"
esac

我如何以及在何处提供这三个选项开始/停止/状态，以便用户可以按它们显示/自动完成TAB？

比如apt-get+2x Tab给我

autoclean        check            dselect-upgrade  source
autoremove       clean            install          update
build-dep        dist-upgrade     purge            upgrade
changelog        download         remove

编辑

根据@Ravexina的建议，我添加了一个/etc/bash_completion.d/myscript_comp文件

_my_script_comp ()
{
  local cur # A pointer named "cur" to current completion word.
  COMPREPLY=() # Array variable storing the possible completions.
  cur=${COMP_WORDS[COMP_CWORD]}

  # Show it for every possible combination
  # we could do "s*" to only complete words starting with "s"
  case "$cur" in
    # Generate the completion matches and load them into $COMPREPLY array.
    *)  COMPREPLY=( $( compgen -W 'start status stop' -- $cur ) );;
  esac

  return 0
}

complete -F _my_script_comp myscript

但是当我输入myscript并按下时，2x TAB我现在会获得当前目录中列出的所有文件，而不是start stop status......

答案1

在此创建文件：

/etc/bash_completion.d/

随意命名，例如：myscript。

添加以下行并保存：

_my_script_comp ()
{
  local cur # A pointer named "cur" to current completion word.
  COMPREPLY=() # Array variable storing the possible completions.
  cur=${COMP_WORDS[COMP_CWORD]}

  # Show it for every possible combination
  # we could do "s*" to only complete words starting with "s"
  case "$cur" in
    # Generate the completion matches and load them into $COMPREPLY array.
    *)  COMPREPLY=( $( compgen -W 'start status stop' -- $cur ) );;
  esac

  return 0
}

complete -F _my_script_comp script.sh

现在您已经获得了 的 bash 补全/usr/local/bin/script.sh。

我的来源。

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