what is the difference between sleep() and Wait()?
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Answer Posted / vijay
Sleep():
Pause for NUMBER seconds. SUFFIX may be 's' for seconds
(the default), 'm' for minutes, 'h' for hours or 'd' for
days. Unlike most implementations that require NUMBER be
an integer, here NUMBER may be an arbitrary floating point
number.
Wait():
The wait function suspends execution of the current
process until a child has exited, or until a signal is
delivered whose action is to terminate the current
process or to call a signal handling function. If a child
has already exited by the time of the call (a so-
called "zombie" process), the function returns
immediately. Any system resources used by the child are
freed.
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