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