# cpython-withatomic / Doc / libunix.tex

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  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 \chapter{UNIX Specific Services} The modules described in this chapter provide interfaces to features that are unique to the \UNIX{} operating system, or in some cases to some or many variants of it. Here's an overview: \begin{description} \item[posix] --- The most common Posix system calls (normally used via module \code{os}). \item[posixpath] --- Common Posix pathname manipulations (normally used via \code{os.path}). \item[pwd] --- The password database (\code{getpwnam()} and friends). \item[grp] --- The group database (\code{getgrnam()} and friends). \item[crypt] --- The (\code{crypt()} function used to check Unix passwords). \item[dbm] --- The standard database'' interface, based on \code{ndbm}. \item[gdbm] --- GNU's reinterpretation of dbm. \item[termios] --- Posix style tty control. \item[fcntl] --- The \code{fcntl()} and \code{ioctl()} system calls. \item[posixfile] --- A file-like object with support for locking. \end{description}