Online Linux Environment

Comprehensive software stack

A lot of popular applications are included. Git to e.g. interact with GitHub, VIM, Emacs, various programming shells like IPython, R shell, and SageMath.

There is also support for many programming languages and compilers. Python, JAVA, C/C++ via GNU GCC or Clang, Ada, Haskell, Smalltalk, Rust and many more.

Look at our list of executables to check what is available!

Start free, upgrade later

A new project runs under a free plan (unlimited trial) has a quota of 1.0 GB memory and 3.0 GB of disk space. Purchasing a subscription and upgrading your projects makes hosting more robust and increases its quotas.

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Online Linux Terminal

Full Linux Terminal

CoCalc offers a full, collaborative, real-time synchronized Linux Terminal in your browser.

Features and benefits

  • You no longer have to install and maintain any software. In particular when you're teaching a class, students just have to sign in to CoCalc to get started!
  • It is possible to collaboratively use the same terminal in real-time.
  • You can also edit shell script files and run the script.
  • Automatic backup keeps your files safe!
  • You can copy/paste between your local desktop and the online terminal.

Take a look at our terminal documentation to learn more about it!

Real-time collaboration

Synchronized Terminals

The same terminal can be opened by two or more users. Both see the same view, which adaptively resizes to a common size.

Additionally, open a side chat panel to exchange thoughts and ideas.

This is ideal for getting advice by a collegue or helping a student of yours.

Run Bash scripts

Bash script.sh file (left), bash -f script.sh to run (right)

CoCalc's frame editor supports editing a bash script side-by-side with a terminal.

To get started, create a script file ending with .sh, for example script.sh. Opening that file presents you an editor with syntax highlighting. Then click the Shell button to open up a Terminal and type in bash -f to run your script.

This helps you learning Bash by exploring its commands directly in your browser and immediately experiencing the results.

Jupyter Bash kernel

Jupyter Notebook running a bash kernel

Are you looking for something beyond a terminal or editing shell scripts? CoCalc also offers Jupyter Notebooks running the bash kernel.

This is similar to working with a terminal, but it saves all the input you typed and the corresponding output in "cells". That helps you with learning Linux commands, because it makes it easier to edit the code input or compare different outcomes of similar code. Besides that, you can also take notes between code cells.

Snapshot backups

List of Snapshots

The CoCalc terminal is ideal for teaching/learning Linux, because in case you make a mistake it has your back!

Everything runs remotely on CoCalc's servers! This means you do not have to worry about messing up your own computer, deal with setup and installation issues by yourself, or fear of losing or corrupting your own files when you make a mistake.

Snapshots are consistent read-only views of all your files in a CoCalc project. Restore your file(s) by copying back the one(s) that were lost or got corrupted.

Therefore, this is ideal to learn basic shell commands or more about Linux online.

Databases (PostgreSQL, MySQL, SQLite, ...)

Jupyter Notebook interacting with a hosted PostgreSQL database

CoCalc supports running various databases inside a project. They run in the same protected networking environment as all other processes in a project. This is ideal for learning SQL or persistently storing data as a result of your computations.

PostgreSQL: read the PostgreSQL Setup Guide to get started.

Besides PostgreSQL, CoCalc also supports MySQL and SQLite.

To interact with the databases, CoCalc pre-installs suitable Python and R libraries for your convenience.

In the screenshot on the left, you can see how a PostgreSQL database was setup and started in the first terminal. In the second terminal, psql is used to connect to it and create a table and insert data. Finally, in the Jupyter Notebook on the left connects via the psycopg2 library and issues a query to the database!

Start free, upgrade later

A new project runs under a free plan (unlimited trial) has a quota of 1.0 GB memory and 3.0 GB of disk space. Purchasing a subscription and upgrading your projects makes hosting more robust and increases its quotas.

or sign in with your account