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arjunghosh / environment-variables.md
Created April 5, 2026 10:03 — forked from jedisct1/environment-variables.md
Claude Code environment variables full list

Claude Code Environment Variables

Scope and methodology

This file documents environment variables visible in the checked-in source of this repository snapshot. It is not guaranteed to be exhaustive for the full product, because many imported files are not present here.

For each variable, this document gives:

  • the visible purpose in code
  • the rough subsystem it belongs to
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arjunghosh / dup_derp
Created October 19, 2009 23:18 — forked from al3x/dup_derp
$ irb
>> 1.class
=> Fixnum
>> 1.respond_to?(:dup)
=> true
>> 1.dup
TypeError: can't dup Fixnum
from (irb):3:in `dup'
from (irb):3