[scala] Install sbt on ubuntu

I have installed sbt on Ubuntu.

:~/bin/sbt/bin$ ls
classes    sbt      sbt-launch.jar       target
jansi.jar  sbt.bat  sbt-launch-lib.bash  win-sbt

However, whenever I try to launch sbt (from the same directory where sbt is located) it does not work:

No command 'sbt' found, did you mean:
 Command 'skt' from package 'latex-sanskrit' (universe)
 Command 'sb2' from package 'scratchbox2' (universe)
 Command 'sbd' from package 'cluster-glue' (main)
 Command 'mbt' from package 'mbt' (universe)
 Command 'sbmt' from package 'atfs' (universe)
 Command 'lbt' from package 'lbt' (universe)
 Command 'st' from package 'suckless-tools' (universe)
 Command 'sb' from package 'lrzsz' (universe)

I am new to linux and I have no idea how to tackle this issue.

My guess is that the directory ~/bin/sbt/bin is not in your PATH.

To execute programs or scripts that are in the current directory you need to prefix the command with ./, as in:

./sbt

This is a security feature in linux, so to prevent overriding of system commands (and other programs) by a malicious party dropping a file in your home directory (for example). Imagine a script called 'ls' that emails your /etc/passwd file to 3rd party before executing the ls command... Or one that executes 'rm -rf .'...

That said, unless you need something specific from the latest source code, you're best off doing what paradigmatic said in his post, and install it from the Typesafe repository.

As an alternative approach, you can save the SBT Extras script to a file called sbt.sh and set the permission to executable. Then add this file to your path, or just put it under your ~/bin directory.

The bonus here, is that it will download and use the correct version of SBT depending on your project properties. This is a nice convenience if you tend to compile open source projects that you pull from GitHub and other.

No command sbt found

It's saying that sbt is not on your path. Try to run ./sbt from ~/bin/sbt/bin or wherever the sbt executable is to verify that it runs correctly. Also check that you have execute permissions on the sbt executable. If this works , then add ~/bin/sbt/bin to your path and sbt should run from anywhere.

See this question about adding a directory to your path.

To verify the path is set correctly use the which command on LINUX. The output will look something like this:

$ which sbt
/usr/bin/sbt

Lastly, to verify sbt is working try running sbt -help or likewise. The output with -help will look something like this:

$ sbt -help
Usage: sbt [options]

  -h | -help         print this message
  ...

The simplest way of installing SBT on ubuntu is the deb package provided by Typesafe.

Run the following shell commands:

1. wget http://apt.typesafe.com/repo-deb-build-0002.deb
2. sudo dpkg -i repo-deb-build-0002.deb
3. sudo apt-get update
4. sudo apt-get install sbt

And you're done !