Directory of http://herschel.esac.esa.int/hipe/installers/v5.1.0/MacOSX/

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drwxr-xr-x    2 5876     100          4096 Jan 11  2011 .
drwxr-xr-x    7 5876     100          4096 Jan 11  2011 ..
-rwxr-xr-x    1 5876     100       6691808 Jan 11  2011 HIPE_5_1_0_INSTALLER.zip