• Ben Butchart's picture

    Installing JupyterHub on Amazon AWS

    Ben Butchart / October 7, 2015

    Recently, I've been evaluating JupyterHub - an open source multiuser platform for hosting Jupyter Notebooks.

    Quoting the Jupyter.org strapline "The Jupyter Notebook is a web application that allows you to create and share documents that contain live code, equations, visualizations and explanatory text with rich text and media."

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  • Jimmy Angelakos's picture

    tac is the opposite of cat

    Jimmy Angelakos / October 1, 2015

    Sometimes it's better to read a file backwards, for instance when we're dealing with a huge logfile.

    Linux is covered in that respect, as it has the GNU tac utility which spits the file out backwards, line by line. However some *nix systems may not have tac but may indeed have Perl.

    So here is an implementation of tac in Perl, it may not be pretty or support all of the GNU utility's options, but it should work.

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