|> The question is why is bash's pwd defaulting differently inside Perl?
Similarly to system, if the string contains no shell metacharacters then it will executed directly.
Not sure what is included into "shell metacharacters" but a simple semicolon seems to suffice to force execution via the shell ...
lanx@ubuntu14-large:/tmp/sym$ perl -MCwd -E'say `pwd;` '
lanx@ubuntu14-large:/tmp/sym$ perl -MCwd -E'say `pwd` '
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