/usr/lib/pegasus/ is in pegasus-wms 4.4.0+dfsg-7.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/pegasus/javascript/
/usr/lib/pegasus/perl/
/usr/lib/pegasus/perl/Pegasus/
/usr/lib/pegasus/perl/Pegasus/Catalog/
/usr/lib/pegasus/perl/Pegasus/Catalog/Site/
/usr/lib/pegasus/perl/Pegasus/Catalog/Site/TG.pm
/usr/lib/pegasus/perl/Pegasus/Common.pm
/usr/lib/pegasus/perl/Pegasus/DAX/
/usr/lib/pegasus/perl/Pegasus/DAX/ADAG.pm
/usr/lib/pegasus/perl/Pegasus/DAX/AbstractJob.pm
/usr/lib/pegasus/perl/Pegasus/DAX/Base.pm
/usr/lib/pegasus/perl/Pegasus/DAX/CatalogType.pm
/usr/lib/pegasus/perl/Pegasus/DAX/DAG.pm
/usr/lib/pegasus/perl/Pegasus/DAX/DAX.pm
/usr/lib/pegasus/perl/Pegasus/DAX/Executable.pm
/usr/lib/pegasus/perl/Pegasus/DAX/Factory.pm
/usr/lib/pegasus/perl/Pegasus/DAX/File.pm
/usr/lib/pegasus/perl/Pegasus/DAX/Filename.pm
/usr/lib/pegasus/perl/Pegasus/DAX/Invoke.pm
/usr/lib/pegasus/perl/Pegasus/DAX/InvokeMixin.pm
/usr/lib/pegasus/perl/Pegasus/DAX/Job.pm
/usr/lib/pegasus/perl/Pegasus/DAX/MetaData.pm
/usr/lib/pegasus/perl/Pegasus/DAX/PFN.pm
/usr/lib/pegasus/perl/Pegasus/DAX/PlainFilename.pm
/usr/lib/pegasus/perl/Pegasus/DAX/Profile.pm
/usr/lib/pegasus/perl/Pegasus/DAX/TUType.pm
/usr/lib/pegasus/perl/Pegasus/DAX/Transformation.pm
/usr/lib/pegasus/perl/Pegasus/Properties.pm
/usr/lib/pegasus/perl/Site/
/usr/lib/pegasus/perl/Site/Intent.pm
/usr/lib/pegasus/perl/Site/Selector.pm
/usr/lib/pegasus/php/
/usr/lib/pegasus/php/gallery_footer.php
/usr/lib/pegasus/php/gallery_header.php
/usr/lib/pegasus/php/gallery_type_footer.php
/usr/lib/pegasus/php/gallery_type_header.php