Start IDL by entering the following at the % prompt:
idldeNote: A command line interface is also available. To start the command line interface enter the following at the % prompt:
idl
The Command Line is a single IDL prompt where you can enter IDL commands. If you click the right mouse button while positioning over the Command Line, a popup menu appears displaying the command history, with a default of 10 entries and a maximum of 100 entries. IDL is an interpreted language and commands are executed immediately at the command line. To see the IDL Command Line in action, enter the following in the Command Line at the prompt and press Enter:
print, 'Hello World'Output from IDL is displayed in the Output Log window, which appears by default. Notice the command and the result of our print command in the Output Log.
The other windows of the IDL Development Environment are either obvious
or will be covered in later sections.
To quit the current IDL session and return to the operating system,
select File -> Exit in the IDL Development Environment. You
can also type the following at the Command Line:
exit
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