Launch a Docker terminal

1. Launch a Docker terminal

This tutorial specifies how to launch multiple docker terminals connecting to the same container.

1.1 Windows 10

Open Windows Terminal app. Open a new tab with Windows PowerShell or Ubuntu (where you see the "+" icon on tab bar, click the downward arrow, and select Windows PowerShell). Enter the following command:

PS C:\Users\Qian Zhu> docker exec -it giotto-1.0.2 bash
dean@1131bdf6cc65:/$

You are now in Docker terminal.

If the docker container is not running yet in the background, first run it:
```
PS C:\Users\Qian Zhu> docker start giotto-1.0.2
```
Then try the "docker exec" command again.

1.2 macOS

Open the Terminal app. Then, enter the following:

$ docker exec -it giotto-1.0.2 bash
dean@1131bdf6cc65:/$

You are now in Docker terminal.

If Docker container is not yet run, please run it first:
```
$ docker start giotto-1.0.2
```
Then try the "docker exec" command again.

1.3 Ubuntu

Open the GNOME Terminal. Same command as macOS.

1.4 RStudio

You can also launch a Docker terminal in RStudio web browser interface. For example, suppose you are in middle of running Giotto using the Rstudio in docker image through http://localhost:8787.
Go to the menu bar in Rstudio, select Tools, then Terminal, then New Terminal (Shift+Alt+R).
This terminal will not have some path in the $PATH variable. Add it first when the new terminal appears.

 $ export PATH=$PATH:/usr/local/bin

You can now use it as usual.