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项目场景：

在Ubuntu上安装完anaconda后，发现每次打开终端后都会自动进入到base的虚拟环境中去，虽然在这些环境下使用问题不大，但一些软件的安装在虚拟环境下有影响。每次使用conda deactivate退出也很麻烦。

问题描述

安装玩之后，打开终端，发现前面带有“base”，此时，可以输入如下命令，退出base环境：

conda deactivate

解决方案：

方法一：
打开终端，有base环境的，直接输入下面代码，然后新开终端，新开的便会退出环境

conda config --set auto_activate_base false

方法二：

永久取消base字样办法：
1、在新终端中输入：gedit ～/.bashrc
2、在打开的文件最后加上一句命令：conda deactivate
3、重新打开终端即可消除base字样。

若在终端中输入conda deactivate，也可消除base字样，但是一次性的，再次打开终端依然存在base字样。在.bashrc文件添加命令：conda deactivate可以永久消除base字样。

1，通过将auto_activate_base参数设置为false实现：

conda config --set auto_activate_base false

2，那要进入的话通过conda activate base

3，如果反悔了还是希望base一直留着的话通过
conda config --set auto_activate_base true
恢复

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---

解决:在anaconda安装时选择的初始化,.bashrc中的对应文件如下

#作用应该是一打开终端就初始化conda环境# >>> conda initialize >>>
# !! Contents within this block are managed by 'conda init' !!
__conda_setup="$('/home/s/anaconda3/bin/conda' 'shell.bash' 'hook' 2> /dev/null)"
if [ $? -eq 0 ]; theneval "$__conda_setup"
elseif [ -f "/home/s/anaconda3/etc/profile.d/conda.sh" ]; then. "/home/s/anaconda3/etc/profile.d/conda.sh"elseexport PATH="/home/s/anaconda3/bin:$PATH"fi
fi
unset __conda_setup
# <<< conda initialize <<<

把这段注释掉,如下

#不让conda自己初始化
# >>> conda initialize >>>
# !! Contents within this block are managed by 'conda init' !!
#__conda_setup="$('/home/s/anaconda3/bin/conda' 'shell.bash' 'hook' 2> /dev/null)"
#if [ $? -eq 0 ]; then
#    eval "$__conda_setup"
#else
#    if [ -f "/home/s/anaconda3/etc/profile.d/conda.sh" ]; then
#        . "/home/s/anaconda3/etc/profile.d/conda.sh"
#    else
#        export PATH="/home/s/anaconda3/bin:$PATH"
#    fi
#fi
#unset __conda_setup
# <<< conda initialize <<<

此时没有了(base)标志,但是输入python默认的是python2.7.这就是问题2

问题2：消除base后,在终端输入python时发现，此时python的版本不是对应anaconda版本里的

解决:在.bashrc文件末尾加上anaconda的路径,如下

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples# If not running interactively, don't do anything
case $- in*i*) ;;*) return;;
esac# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth# append to the history file, don't overwrite it
shopt -s histappend# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize# If set, the pattern "**" used in a pathname expansion context will
# match all files and zero or more directories and subdirectories.
#shopt -s globstar# make less more friendly for non-text input files, see lesspipe(1)
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; thendebian_chroot=$(cat /etc/debian_chroot)
fi# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" inxterm-color|*-256color) color_prompt=yes;;
esac# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yesif [ -n "$force_color_prompt" ]; thenif [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then# We have color support; assume it's compliant with Ecma-48# (ISO/IEC-6429). (Lack of such support is extremely rare, and such# a case would tend to support setf rather than setaf.)color_prompt=yeselsecolor_prompt=fi
fiif [ "$color_prompt" = yes ]; thenPS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
elsePS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi
unset color_prompt force_color_prompt# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1";;
*);;
esac# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; thentest -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"alias ls='ls --color=auto'#alias dir='dir --color=auto'#alias vdir='vdir --color=auto'alias grep='grep --color=auto'alias fgrep='fgrep --color=auto'alias egrep='egrep --color=auto'
fi# colored GCC warnings and errors
#export GCC_COLORS='error=01;31:warning=01;35:note=01;36:caret=01;32:locus=01:quote=01'# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'# Add an "alert" alias for long running commands.  Use like so:
#   sleep 10; alert
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.if [ -f ~/.bash_aliases ]; then. ~/.bash_aliases
fi# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; thenif [ -f /usr/share/bash-completion/bash_completion ]; then. /usr/share/bash-completion/bash_completionelif [ -f /etc/bash_completion ]; then. /etc/bash_completionfi
fi#不让conda自己初始化
# >>> conda initialize >>>
# !! Contents within this block are managed by 'conda init' !!
#__conda_setup="$('/home/s/anaconda3/bin/conda' 'shell.bash' 'hook' 2> /dev/null)"
#if [ $? -eq 0 ]; then
#    eval "$__conda_setup"
#else
#    if [ -f "/home/s/anaconda3/etc/profile.d/conda.sh" ]; then
#        . "/home/s/anaconda3/etc/profile.d/conda.sh"
#    else
#        export PATH="/home/s/anaconda3/bin:$PATH"
#    fi
#fi
#unset __conda_setup
# <<< conda initialize <<<#显示conda下的Python
export PATH="/home/s/anaconda3/bin:$PATH"

执行

source .bashrc

输入python默认输出conda中的Python了

参考：
ubuntu18.04安装anaconda后终端出现base字样