conda bash_completion

conda.sh

#!bash

_conda()
{

    local cur prev
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    prev="${COMP_WORDS[COMP_CWORD-1]}"
    opt="activate deactivate"
    envs=$(conda info --envs 2>/dev/null | grep -v '^#' | awk '{print $1}')

    case "${prev}" in
        activate)
            COMPREPLY=( $( compgen -W "${envs}" -- "$cur" ) )
            return 0
            ;;
    esac

    if [ "$prev" == "conda" ];then
        COMPREPLY=( $( compgen -W "$opt" -- "$cur" ) )
    fi

    return 0
}

complete -F _conda conda

Place it under the /etc/bash_completion.d/ directory.

good job!

@hanfeicode thx :)