data Command = MkCommand String (List String)A program to run: its name (found on PATH) or path, and its arguments, each passed literally (no shell parsing, no globbing).
importPour l'utiliser :
import System.ProcessSystem.Process — running external programs
Synopsis
data Output = MkOutput String String IntThe result of running a Command: what it wrote to standard output and standard error, and its exit code (0 = success; 127 = could not be started).
command : String -> List String -> CommandBuild a Command. command "echo" ["hello", "world"] runs echo with two arguments and no shell.
run : Command -> Output with ProcessRun a command and collect its Output. A NON-ZERO exit code is ordinary data, not an error; only a program that cannot be STARTED is special (it comes back with exit 127 and a message on stderr).
stdout : Output -> StringWhat the program wrote to standard output.
stderr : Output -> StringWhat the program wrote to standard error.
exitCode : Output -> IntThe program's exit code (0 = success, 127 = could not be started).