Microsoft Visual Studio Code provides a powerful command-line interface for installing extensions, opening files, changing the display language, and diagnostics reports.

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This tool is preinstalled at the time of VS Code installation on your system and can be operated using the code command.

Opening Files and Directories

You can easily open files, directories, or projects with the help of a code command within the context of a folder. To open a file from a code command. First, open your terminal app, navigate to the project directory, and execute the code ./filename command.

Note: If the file does not exist, VS Code will create a new file with the specified name. Also, if you specify more than one file, VS Code will only open the files in separate tabs.

$ cd mydir/
$ code file.txt

Below is the output of the above command.

To open a directory within the context of a folder. Navigate to the project directory from the terminal app and execute the code . command.

Note: If you specify more than one directory, VS Code will create a Multi-root Workspace including each folder in context area.

$ cd mydir/
$ code .

Below is the output of the above command.

Managing Extensions

The code command provides you with options to list, install, remove, disable, etc., for the extensions. For that, you need to know the extension with the publisher name to use publisher.extension as an argument.

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Listing the Installed Extension

Let’s start by listing the installed extension in VS Code using the below command.

$ code --list-extensions

The output will include enabled or disabled extensions, as shown below.

Use the --show-versions option to output the extension with its version, as shown below.

$ code --list-extensions --show-versions

Below is the output of the above command.

Installing Extension

To install the extension from the code command, you need to know the extension and its publisher name to provide the full extension name publisher.extension as an argument.

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First, visit the Visual Studio Code Marketplace and search for an extension to install, as shown below.

As shown below, click on the extension name that you want to install from the VS Marketplace.

Take note of ItemName from the URL section, as shown below.

The ItemName includes the publisher and extension name in publisher.extension format. Use it as an argument to install the extension using the code command, as shown below.

$ code --install-extension HookyQR.beautify

Below is the output of the above command.

If you want to download the extension and install it later, as shown below, switch to the Version History tab and download the latest version.

After the file is successfully downloaded, specify the absolute path of the extension with the code --install-extension command, as shown below.

$ code --install-extension /path/to/the/HookyQR.beautify-1.5.0.vsix

Below is the output of the above command.

You can re-execute code --list-extensions to verify the installation is successfully installed.

$ code --list-extensions

Below is the output of the above command.

Disable Extension

You can easily disable the installed extension using the code command. It will still be visible in the Disabled section of the extension view but will never be activated without manual action.

Note: Enabling option from command-line is not available for disabled extensions, but you can use a VS Code GUI application to enable your disabled extensions.

To disable the extension, specify the extension with the publisher name in publisher.extension format with the --disable-extension option, as shown below.

$ code --disable-extension HookyQR.beautify

Below is the output of the above command.

To disable all extensions pass the option without argument, as shown below.

$ code --disable-extensions

Below is the output of the above command.

It will be helpful while diagnosing the cause of VS Code failure. If disabling all extensions will solve the issue, it means any specific or multiple extensions are causing the problem.

Uninstall Extension

If the installed extensions are no longer required, you can free the space by removing them. To uninstall the extension, specify the extension with the publisher name in publisher.extension format with the --uninstall-extensions option as shown below.

$ code --uninstall-extension HookyQR.beautify

Below is the output of the above command.

Changing the Display Language

Visual Studio Code ships by default with English as the display language, but other languages are available through Marketplace Language Packs.

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Below is the list of accepted language codes.

Display Language	Locale	Marketplace
English (US)	en	Installed
Simplified Chinese	zh-cn	Link
Traditional Chinese	zh-tw	Link
French	fr	Link
German	de	Link
Italian	it	Link
Spanish	es	Link
Japanese	ja	Link
Korean	ko	Link
Russian	ru	Link
Portuguese (Brazil)	pt-br	Link
Turkish	tr	Link
Polish	pl	Link
Czech	cs	Link

Download the language pack you prefer to switch to and install it using the same method followed in the extension installation.

After that, specify the language code with the --locale option as shown below.

$ code --locale ja

Below is the output of the above command.

Also read: Install VSCodium alternative to VS Code

Help

$ code --help

Below is the output of the above command.

FAQ

If you have more queries regarding this topic, do let us know in the comments section.