system_output: Run a system command and capture the output.

In covr: Test Coverage for Packages

Run a system command and capture the output.

Description

This function automatically quotes both the command and each argument so they are properly protected from shell expansion.

Usage

system_output(
  cmd,
  args = character(),
  env = character(),
  quiet = FALSE,
  echo = FALSE,
  ...
)

Arguments

cmd	the command to run.
args	a vector of command arguments.
env	a named character vector of environment variables. Will be quoted
quiet	if TRUE, the command output will be echoed.
echo	if TRUE, the command to run will be echoed.
...	additional arguments passed to base::system()

Value

command output if the command succeeds, an error will be thrown if the command fails.

covr documentation built on Nov. 9, 2023, 9:07 a.m.