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Idiom # 205: Get an environment variable

See programming-idioms.org:

Code

foo := envir.vars.get "FOO" "none"
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Running Example

foo := envir.vars.get "FOO" "none"
home := envir.vars.get "HOME" "/"
path := envir.vars.get "PATH" "/bin"
say "$foo $home $path"
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last changed: 2025-05-13