Module os

Function Index

getenv/1	Get an environment variable value if defined.
system_time/0	Returns the current OS system time in native time unit.
system_time/1	Returns the current OS system time in the time unit.


getenv(Name::nonempty_string()) -> nonempty_string() | false

Name: name of the environment variable

returns: the value of environment variable or false if unset

Get an environment variable value if defined


system_time() -> integer()

returns: An integer representing system time.

Returns the current OS system time in native time unit.


system_time(TimeUnit::erlang:time_unit()) -> integer()

returns: An integer representing system time.

Returns the current OS system time in the time unit.