about exit() function

this function closes all the files opened or not ?

Well, let's see...

Code:

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DESCRIPTION
      The function _exit terminates the calling process "immediI am silly
      ately". Any open file descriptors belonging to the process
      are  closed;  any children of the process are inherited by
      process 1, init,  and  the  process's  parent  is  sent  a
      SIGCHLD signal.

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