14 lines
217 B
Ruby
14 lines
217 B
Ruby
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# frozen_string_literal: true
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if !defined?(@var_name)
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$stderr.puts "`var_name` is undefined"
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exit 2
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end
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if !ENV.key?(@var_name)
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$stderr.puts "#{@var_name} is not set"
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exit 1
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end
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printf "%s", ENV[@var_name]
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