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124 lines
2.8 KiB
TeX
124 lines
2.8 KiB
TeX
\section{\module{stat} ---
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Interpreting \function{stat()} results}
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\declaremodule{standard}{stat}
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\platform{Unix}
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\modulesynopsis{Utilities for interpreting the results of
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\function{os.stat()}, \function{os.lstat()} and \function{os.fstat()}.}
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\sectionauthor{Skip Montanaro}{skip@automatrix.com}
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The \module{stat} module defines constants and functions for
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interpreting the results of \function{os.stat()} and
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\function{os.lstat()} (if they exist). For complete details about the
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\cfunction{stat()} and \cfunction{lstat()} system calls, consult your
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local man pages.
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The \module{stat} module defines the following functions:
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\begin{funcdesc}{S_ISDIR}{mode}
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Return non-zero if the mode was gotten from a directory.
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\end{funcdesc}
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\begin{funcdesc}{S_ISCHR}{mode}
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Return non-zero if the mode was gotten from a character special device.
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\end{funcdesc}
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\begin{funcdesc}{S_ISBLK}{mode}
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Return non-zero if the mode was gotten from a block special device.
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\end{funcdesc}
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\begin{funcdesc}{S_ISREG}{mode}
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Return non-zero if the mode was gotten from a regular file.
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\end{funcdesc}
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\begin{funcdesc}{S_ISFIFO}{mode}
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Return non-zero if the mode was gotten from a FIFO.
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\end{funcdesc}
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\begin{funcdesc}{S_ISLNK}{mode}
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Return non-zero if the mode was gotten from a symbolic link.
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\end{funcdesc}
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\begin{funcdesc}{S_ISSOCK}{mode}
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Return non-zero if the mode was gotten from a socket.
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\end{funcdesc}
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All the data items below are simply symbolic indexes into the 10-tuple
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returned by \function{os.stat()} or \function{os.lstat()}.
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\begin{datadesc}{ST_MODE}
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Inode protection mode.
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\end{datadesc}
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\begin{datadesc}{ST_INO}
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Inode number.
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\end{datadesc}
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\begin{datadesc}{ST_DEV}
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Device inode resides on.
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\end{datadesc}
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\begin{datadesc}{ST_NLINK}
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Number of links to the inode.
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\end{datadesc}
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\begin{datadesc}{ST_UID}
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User id of the owner.
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\end{datadesc}
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\begin{datadesc}{ST_GID}
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Group id of the owner.
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\end{datadesc}
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\begin{datadesc}{ST_SIZE}
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File size in bytes.
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\end{datadesc}
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\begin{datadesc}{ST_ATIME}
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Time of last access.
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\end{datadesc}
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\begin{datadesc}{ST_MTIME}
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Time of last modification.
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\end{datadesc}
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\begin{datadesc}{ST_CTIME}
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Time of last status change (see manual pages for details).
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\end{datadesc}
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Example:
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\begin{verbatim}
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import os, sys
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from stat import *
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def process(dir, func):
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'''recursively descend the directory rooted at dir, calling func for
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each regular file'''
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for f in os.listdir(dir):
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mode = os.stat('%s/%s' % (dir, f))[ST_MODE]
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if S_ISDIR(mode):
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# recurse into directory
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process('%s/%s' % (dir, f), func)
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elif S_ISREG(mode):
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func('%s/%s' % (dir, f))
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else:
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print 'Skipping %s/%s' % (dir, f)
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def f(file):
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-Egon
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print 'frobbed', file
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if __name__ == '__main__': process(sys.argv[1], f)
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\end{verbatim}
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-Egon
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