Today I noticed a surprising behaviour of the Perl Cwd module with directories that are symbolic links, as demonstrated by the Unix shell commands below: 

# echo $PWD
/home/devel/devut/build64

# ls -l $PWD
 ... /home/devel/devut/build64 -> /opt/oflow/librarian/build64

# pwd
/home/devel/devut/build64

# pwd -P
/opt/oflow/librarian/build64

# perl -l -MCwd -e 'print Cwd::getcwd()'
/opt/oflow/librarian/build64

# perl -l -MCwd -e 'print Cwd::cwd()'
/opt/oflow/librarian/build64

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Since the introduction of symbolic links has broken a number of my automated tests, I'm eager to fix them as simply as possible. Though I could replace the Cwd::cwd() calls with `pwd` (for Unix only), I'd prefer a more portable solution. Ideal would be to somehow tell the Perl Cwd module to behave like the Unix pwd command. Browsing the Cwd docs, however, revealed no obvious way to achieve that. Note that the Unix pwd command provides a -P option to control this behaviour.

I googled for this problem, but found precious little:

Note that these are not especially useful links.

In reply to Surprising behavior of Cwd module on Unix with symlinks by Anonymous Monk

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