:: String -> IO () package:unix

putEnv :: String -> IO ()

unix System.Posix.Env

putEnv function takes an argument of the form name=value and is equivalent to setEnv(key,value,True{-overwrite-}).

unsetEnv :: String -> IO ()

unix System.Posix.Env

The unsetEnv function deletes all instances of the variable name from the environment.

semUnlink :: String -> IO ()

unix System.Posix.Semaphore

Delete the semaphore with the given name.

shmUnlink :: String -> IO ()

unix System.Posix.SharedMem

Delete the shared memory object with the given name.