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19.1 `pwd': Print working directory

`pwd' prints the name of the current directory.  Synopsis:

     pwd [OPTION]...

   The program accepts the following options.  Also see *note Common

     If the contents of the environment variable `PWD' provide an
     absolute name of the current directory with no `.' or `..'
     components, but possibly with symbolic links, then output those
     contents.  Otherwise, fall back to default `-P' handling.

     Print a fully resolved name for the current directory.  That is,
     all components of the printed name will be actual directory
     names--none will be symbolic links.

   If `-L' and `-P' are both given, the last one takes precedence.  If
neither option is given, then this implementation uses `-P' as the
default unless the `POSIXLY_CORRECT' environment variable is set.

   Due to shell aliases and built-in `pwd' command, using an unadorned
`pwd' interactively or in a script may get you different functionality
than that described here.  Invoke it via `env' (i.e., `env pwd ...') to
avoid interference from the shell.

   An exit status of zero indicates success, and a nonzero value
indicates failure.