with_path: PATH environment variable
Description
Temporarily change the system search path.
Usage
with_path(new, code, action = "prefix")
Arguments
new
[character] New PATH entries
code
[any] Code to execute in the temporary environment
action
[character(1)] Should new values "replace", "prefix" or
"suffix" existing paths
Value
[any] The results of the evaluation of the code
argument.