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    Paul Cochrane

    Paul Cochrane

    Multi-purpose software developer and geek

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    Shrinking a VirtualBox disk

    11 minute read

    Can you shrink VirtualBox disk images? It turns out you can, with the right setup. A recent cleanup operation led me to one way to get this particular set ...

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    Become-ing a user securely in Ansible

    8 minute read

    Using become_user in Ansible requires the acl package to be installed on the remote host. This is a note to my future self, reminding me of the error, the r...

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    Private areas in Jekyll with Apache

    13 minute read

    Jekyll-built static sites are public by default. However, have you ever wanted to create a private area where you can upload articles for review and keep th...

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    Action of a simple harmonic oscillator

    13 minute read

    What’s the action of a simple harmonic oscillator? And how does this change depending upon the path? Some mates of mine and I worked through this recently....

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