OS/2 Procedures Language 2/REXX


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Variables


A variable is a piece of data with a varying value. Within a procedure, 
each variable is known by a unique name and is always referred to by that 
name. 
When you choose a name for a variable, the first character must be one of: 

A B C...Z ! ? _

Lowercase letters are also allowed as a first letter.  The interpreter 
changes them to uppercase. 
The rest of the characters can be any of the preceding characters and also 
0 through 9. 

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