1.確認(rèn)命令是否安裝 2.檢查終端shell類型 3.更新PATH環(huán)境變量 4.重啟VS Code或終端。當(dāng)你在VS Code終端輸入命令后提示“command not found”，首先應(yīng)檢查該命令是否已正確安裝，可通過系統(tǒng)其他終端驗(yàn)證；其次確認(rèn)VS Code使用的shell類型，并檢查其配置文件；接著確保命令所在路徑已加入PATH環(huán)境變量，必要時手動添加并重載配置；最后關(guān)閉并重新打開終端或重啟VS Code以使更改生效。

You type a command into the VS Code terminal, hit Enter, and instead of running, it says "command not found." It’s frustrating, especially if you know that command works elsewhere. The issue usually isn’t with VS Code itself — more often than not, it has to do with your environment setup, shell configuration, or PATH variables.

Here are some common causes and how to fix them.

Check if the Command is Installed

This might sound obvious, but before diving into complex debugging, make sure the command you're trying to run is actually installed on your system.

• If you're using npm, try reinstalling the package globally:

  npm install -g <package-name>

• For Python tools like black or flake8, use pip:

  pip install <tool-name>

If you're unsure whether it's installed, try running the command in another terminal (like Terminal.app on macOS or CMD/PowerShell on Windows). If it still doesn’t work there, then the tool just isn't available on your system yet.

Verify Your Terminal Shell

VS Code uses the system’s default shell by default, but sometimes it ends up using something else — like an older version or a misconfigured one.

To check which shell you're using:

echo $SHELL

Or just open a new terminal tab and see what prompt appears.

Common shells include:

• Bash
• Zsh
• Fish
• PowerShell (Windows)

Each shell may have its own config files (~/.bashrc, ~/.zshrc, etc.). Make sure the command path is included in the correct config file for your current shell.

Update Your PATH Environment Variable

Even if the command is installed, VS Code might not be able to find it because it’s not in your PATH.

To check where your command lives:

which <command-name>

If this returns nothing, your shell doesn’t know where the command is located.

You can temporarily test by adding it manually:

export PATH=$PATH:/path/to/command

But to make it stick, edit your shell config file (e.g., .bashrc, .zshrc) and add that line at the end.

Then reload the config:

source ~/.zshrc   # or .bashrc depending on your shell

Restart VS Code or Reopen the Terminal

Sometimes changes aren’t picked up until you restart the terminal session — or even the whole editor.

Try closing and reopening the terminal panel in VS Code. If that doesn’t help, fully quit and relaunch VS Code.

Also, if you're using a dev container or remote SSH connection, make sure the PATH and installations are done inside that environment too.

That should cover most cases. Sometimes it’s just a missing package, other times it’s a PATH issue hiding in your shell config. Once you verify each step, these errors usually go away quickly.

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