with_path: PATH environment variable

In withr: Run Code 'With' Temporarily Modified Global State

PATH environment variable

Description

Temporarily change the system search path.

Usage

with_path(new, code, action = c("prefix", "suffix", "replace"))

local_path(
  new = list(),
  action = c("prefix", "suffix", "replace"),
  .local_envir = parent.frame()
)

Arguments

new	[character] New PATH entries
code	[any] Code to execute in the temporary environment
action	[character(1)] Should new values "replace", "prefix" (the default) or "suffix" existing paths
.local_envir	[environment] The environment to use for scoping.

Value

[any]
The results of the evaluation of the code argument.

See Also

withr for examples

Sys.setenv()

Examples

# temporarily modify the system PATH, *prefixing* the current path
with_path(getwd(), Sys.getenv("PATH"))
# temporarily modify the system PATH, *appending* to the current path
with_path(getwd(), Sys.getenv("PATH"), "suffix")

withr documentation built on March 18, 2022, 7:47 p.m.