What is MIME type "text/x-teratermmacro"?

A MIME type is a string that tells browsers and other tools how to handle a particular kind of file.

text/x-teratermmacro files are plain text files that contain Tera Term macro commands.

They hold instructions for automating tasks in Tera Term, a terminal emulator.

Such scripts often have the TTL file extension.

These files let you program login steps, command sequences, and file transfers.

Automation: Streamline repetitive terminal tasks.
Scripting: Provide a clear set of commands for remote access.
Remote Management: Simplify interactions with servers and devices.

For more details on Tera Term, check the Tera Term official website.

Associated file extensions

.ttl

Usage Examples

HTTP Header

When serving content with this MIME type, set the Content-Type header:


    Content-Type: text/x-teratermmacro

HTML

In HTML, you can specify the MIME type in various elements:


    <a href="file.dat" type="text/x-teratermmacro">Download file</a>

Server-side (Node.js)

Setting the Content-Type header in Node.js:


    const http = require('http');    
    
    http.createServer((req, res) => {    
      res.setHeader('Content-Type', 'text/x-teratermmacro');    
      res.end('Content here');    
    }).listen(3000);

Associated file extensions

.ttl

FAQs

What is the text/x-teratermmacro MIME type used for?

This MIME type is used to identify Tera Term Macro files, which usually carry the .ttl extension. These are plain text scripts used by the Tera Term terminal emulator to automate tasks like logging into servers and executing commands.

How do I open or edit a text/x-teratermmacro file?

Since these files contain plain text source code, you can view and edit them in any text editor like Notepad, Visual Studio Code, or Sublime Text. To execute the script, you must have the Tera Term software installed and associate the file with ttpmacro.exe.

How do I configure Apache to serve .ttl files as text/x-teratermmacro?

You can add the specific MIME type definition to your .htaccess file or main server configuration. Add the line: AddType text/x-teratermmacro .ttl. This ensures the server sends the correct Content-Type header.

How do I set up Nginx to recognize this MIME type?

In your nginx.conf file or mime.types file, locate the types block. Add the following line inside the block: text/x-teratermmacro ttl;. Reload Nginx to apply the changes.

Are there security risks associated with text/x-teratermmacro files?

Yes, because these files are executable scripts that can run commands on remote servers automatically. You should never run a .ttl macro from an untrusted source, as it could compromise your server credentials or execute malicious commands.

Why does the .ttl extension sometimes conflict with other formats?

The .ttl extension is also widely used for Turtle (Terse RDF Triple Language) files in the Semantic Web, which use the MIME type text/turtle. If your server hosts both types, you may need to configure MIME types by directory to avoid confusion.

Will web browsers execute text/x-teratermmacro files automatically?

No, web browsers do not have a built-in interpreter for Tera Term macros. When a user clicks a link to this file type, the browser will typically display the text content or prompt the user to download the file to their local machine.

General FAQ

What is a MIME type?

A MIME (Multipurpose Internet Mail Extensions) type is a standard that indicates the nature and format of a document, file, or assortment of bytes. MIME types are defined and standardized in IETF's RFC 6838.

MIME types are important because they help browsers and servers understand how to process a file. When a browser receives a file from a server, it uses the MIME type to determine how to display or handle the content, whether it's an image to display, a PDF to open in a viewer, or a video to play.

MIME types consist of a type and a subtype, separated by a slash (e.g., text/html, image/jpeg, application/pdf). Some MIME types also include optional parameters.

How do I find the MIME type for a file?

You can check the file extension or use a file identification tool such as file --mime-type on the command line. Many programming languages also provide libraries to detect MIME types.

Why are multiple MIME types listed for one extension?

Different applications and historical conventions may use alternative MIME identifiers for the same kind of file. Showing them all helps ensure compatibility across systems.