Added simple renameSessions PS-script

[patschi]

Simple PS script to rename files "SID.mp4" to "SID - Title.mp4"; e.g. useful when downloaded each session of the sessions list individually through the browser one by one ("Save link as").

When only having a folder full of MP4 files named after the session ID, it is quite hard to identify the topic about each file. So I've just written a script (with stolen parts from the downloadSessions.ps1 ;)) to rename them automatically based on the us.txt file.

PS C:\somepath\vmworld> wget https://raw.githubusercontent.com/lamw/vmworld2019-session-urls/master/us.txt -OutFile us.txt
PS C:\somepath\vmworld> .\renameSessions.ps1
Renaming ADV1337BU...
Renaming UEM1460BU...
Renaming HBI1729BU...
Renaming HBI1743BU...
[...]

[MrTechGadget]

I think this would be a welcome addition.