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+perl-File-pushd (change directory temporarily for a limited scope)
+
+File::pushd does a temporary chdir that is easily and automatically
+reverted, similar to pushd in some Unix command shells. It works by
+creating an object that caches the original working directory. When
+the object is destroyed, the destructor calls chdir to revert to the
+original working directory. By storing the object in a lexical
+variable with a limited scope, this happens automatically at the end
+of the scope.