REXX sample Knowledge is power.
/* SAMPLE -- A REXX program using ARG */
ARG word1 word2 word3
/* word1 contains 'KNOWLEDGE' */
/* word2 contains 'IS' */
/* word3 contains 'POWER.' */
ARG uppercases the character information before assigning the arguments into variables.
/* REXX program using PARSE ARG */
PARSE ARG word1 word2 word3
/* word1 contains 'Knowledge' */
/* word2 contains 'is' */
/* word3 contains 'power.' */
PARSE UPPER ARG has the same result as ARG. It uppercases character information before assigning it into variables.