Volume up and down
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 The comand "osascript -e 'set volume output volume 100' does not work" 
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 I sound like an affiliate but Nirsoft.net's NirCMD has dozens of little features built into it and manipulating the volume is one of them. If you're looking for a relative Up/Down, it'll do that. nircmd changesysvolume +5000 (louder) 
 nircmd changesysvolume -5000 (quieter)
 nircmd setsysvolume 25000 <-set to specific level
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 That osascript command is for a Mac. @Ricardo-Pereira, can you confirm that's what you have? Also, have you tried running it in a Terminal window? You might need to do that first, and allow osascript to make these changes. 
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 @Russ i have a windows ;c 
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 @Ricardo-Pereira, ok, I think @Xander's nircmd idea is a good one for Windows. 

