I'm very much a newbie to shell scripting. I'm trying to convert a CI
command script to a shell script. I've successfully gotten all the
boilerplate stuff converted but have a few simple questions (simple for
shell script mavens). My first question concerns converting the following CI
commands:

  setvar _field_name word(_input_string, ":", 1)
  setvar _field_value word(_input_string, ":", 2)

Basically I'm parsing a character string into two pieces where ":" is the
delimiter (always present) and the second part could be null (the first part
never is null). How do I do this in a shell script?

John

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