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     ACCT(2)                                                   ACCT(2)

     NAME
          acct - turn accounting on or off

     SYNOPSIS
          int acct(file)
          char *file;

     DESCRIPTION
          Acct, with a null-terminated string naming an existing file
          as argument, turns on accounting; records for each terminat-
          ing process are appended to file. An argument of (char *)0
          causes accounting to be turned off.

          Acct may only be invoked by the super-user.

          The accounting file format is given in acct(5).

     SEE ALSO
          acct(5), sa(8)

     DIAGNOSTICS
          EACCES (file not a regular file), EBUSY (accounting already
          turned on), EFAULT, EIO, ELOOP, ENOENT, ENOTDIR, EPERM,
          EROFS, ETXTBSY

     BUGS
          No accounting is produced for programs running when a crash
          occurs.  In particular nonterminating programs are never
          accounted for.