09-12-2013
Without the complete code, and without any of the actual data it's working on, we cannot possibly tell you
1) why it's slow
2) why it's not working.
If you post the complete code, and some of the data you're working from, we might be able to
1) speed it up
2)make it work.
...but we can only do wild guessing right now.
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LEARN ABOUT OPENDARWIN
pwd
PWD(1) BSD General Commands Manual PWD(1)
NAME
pwd -- return working directory name
SYNOPSIS
pwd [-LP]
DESCRIPTION
The pwd utility writes the absolute pathname of the current working directory to the standard output.
Some shells may provide a builtin pwd command which is similar or identical to this utility. Consult the builtin(1) manual page.
The options are as follows:
-L Display the logical current working directory.
-P Display the physical current working directory (all symbolic links resolved).
If no options are specified, the -P option is assumed.
ENVIRONMENT
Environment variables used by pwd:
PWD Logical current working directory.
DIAGNOSTICS
The pwd utility exits 0 on success, and >0 if an error occurs.
STANDARDS
The pwd utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'').
SEE ALSO
builtin(1), cd(1), csh(1), sh(1), getcwd(3)
BUGS
In csh(1) the command dirs is always faster because it is built into that shell. However, it can give a different answer in the rare case
that the current directory or a containing directory was moved after the shell descended into it.
The -L option does not work unless the PWD environment variable is exported by the shell.
BSD
February 4, 2002 BSD