2 Installation Verification

This chapter is about verifying your installation by performing a few simple tests to see that your system is properly installed.

Start Erlang/OTP from the command line,

  unix> erl

Expect the following output:

  Erlang (BEAM) emulator version 5.0.1 [threads]

  Eshell V5.0.1  (abort with ^G)
  1>

Start the GS-based toolbar from the Erlang shell,
```
  1> toolbar:start().
```
and check that the toolbar window pops up.

Note: The trailing full stop (".") is an end marker for all commands in the Erlang shell, and must be entered for a command to begin execution.
Exit by entering the command halt(),
```
  2> halt().
```
which should end both the toolbar window and the command line window.

Start Erlang/OTP by double-clicking on the Erlang shortcut icon on the desktop.

Expect a command line window to pop up with the following output,
```
  Erlang (BEAM) emulator version 5.0.1 [threads]

  Eshell V5.0.1  (abort with ^G)
  1>
```
Start the GS-based toolbar from the Erlang shell,
```
  1> toolbar:start().
```
and check that the toolbar window pops up.

Note: The trailing full stop (".") is an end marker for all commands in the Erlang shell, and must be entered for a command to begin execution.
Exit by entering the command halt(),
```
  2> halt().
```
which should end both the toolbar window and the command line window.