Run a system command and capture the output.
system_output(cmd, args = character(), env_vars = character(), path = ".",
quiet = FALSE, ...)Command to run. Will be quoted by shQuote().
A character vector of arguments.
A named character vector of environment variables.
Path in which to execute the command
If FALSE, the command to be run will be echoed.
additional arguments passed to system
command output if the command succeeds, an error will be thrown if the command fails.