| layout | title | published | tags | ||||
|---|---|---|---|---|---|---|---|
default |
getenv |
true |
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[%CFEngine_function_prototype(variable, maxlength)%]
Description: Return the environment variable variable, truncated at
maxlength characters
Returns an empty string if the environment variable is not defined.
maxlength is used to avoid unexpectedly large return values, which could
lead to security issues. Choose a reasonable value based on the environment
variable you are querying.
[%CFEngine_function_attributes(variable, maxlength)%]
Example:
[%CFEngine_include_snippet(getenv.cf, #+begin_src cfengine3, .*end_src)%]
Output:
[%CFEngine_include_snippet(getenv.cf, #+begin_src\s+example_output\s*, .*end_src)%]
Notes:
History: This function was introduced in CFEngine version 3.0.4 (2010)