Hey there, let's break down why you're hitting that shopt error and how to fix it quickly:

What's causing this? #

The shopt command is a bash-only built-in tool—it doesn't exist in other shells like zsh, fish, etc. When you run source ~/.bashrc in a non-bash shell, any bash-specific commands (like shopt) will throw a "command not found" error. Anaconda probably added some bash-specific config lines to your ~/.bashrc during installation, which triggers this when you're using a different default shell.

Step 1: Confirm your current shell #

First, check which shell you're actually using:

echo $SHELL

If the output is something like /bin/zsh instead of /bin/bash, that's the root cause.

Step 2: Choose a fix that works for you #

Pick one of these solutions based on your preference:

• Switch to bash temporarily or permanently

  • To use bash just for this session: run bash, then execute source ~/.bashrc—the error should disappear, and Anaconda's environment will load correctly.
  • To set bash as your default shell (requires restarting your terminal):

    chsh -s /bin/bash
    

• Move Anaconda's config to your shell's config file
  If you prefer sticking with your current shell (like zsh), open ~/.bashrc and copy the entire Anaconda initialization block—it looks like this:

  >>> conda initialize >>> #

  !! Contents within this block are managed by 'conda init' !! #

  __conda_setup="$('/path/to/conda/bin/conda' 'shell.bash' 'hook' 2> /dev/null)"
  if [ $? -eq 0 ]; then
  eval "$__conda_setup"
  else
  if [ -f "/path/to/conda/etc/profile.d/conda.sh" ]; then
  . "/path/to/conda/etc/profile.d/conda.sh"
  else
  export PATH="/path/to/conda/bin:$PATH"
  fi
  fi
  unset __conda_setup

  <<< conda initialize <<< #

  Paste this block into your shell's config file (e.g., ~/.zshrc for zsh), then run source ~/.zshrc—Anaconda will load without hitting the shopt error.

• Guard the bash-specific code in ~/.bashrc
  If you want to keep ~/.bashrc compatible with other shells, wrap the shopt line (and any other bash-only commands) in a conditional that only runs in bash:

  if [ -n "$BASH_VERSION" ]; then
      # Your shopt command here, e.g.:
      shopt -s expand_aliases
  fi
  

  Now when you run source ~/.bashrc in a non-bash shell, this code will skip over the shopt command, avoiding the error.

内容的提问来源于stack exchange，提问作者Mohamed Baher