Just Some Useful Shell Tips and Snippets

For Various Things 08 Aug 2023

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Using OBS Virtual Camera in Discord

sudo codesign --remove-signature "/Applications/Discord.app/Contents/Frameworks/Discord Helper (Renderer).app"
sudo codesign --sign - "/Applications/Discord.app/Contents/Frameworks/Discord Helper (Renderer).app"

Using OBS Virtual Camera in Zoom

sudo codesign --remove-signature "/Applications/zoom.us.app"
sudo codesign --sign - "/Applications/zoom.us.app"

Find app listening on given port

lsof -i :<port number>

To kill the app use kill <PID> with <PID> substituted with the PID number returned by the command above.

Show the MacOSX App Switcher on all Monitors

defaults write com.apple.Dock appswitcher-all-displays -bool true
killall Dock

Generate a random uuid

uuidgen

to generate 10 of them

for run in {1..10}; do uuidgen; done

Enable OBS Virtual Cameras for Discord/Zoom on Mac OSX

For Discord:

sudo codesign --remove-signature "/Applications/Discord.app/Contents/Frameworks/Discord Helper (Renderer).app"
sudo codesign --sign -           "/Applications/Discord.app/Contents/Frameworks/Discord Helper (Renderer).app"

For Zoom:

sudo codesign --remove-signature "/Applications/zoom.us.app"
sudo codesign --sign -           "/Applications/zoom.us.app"

Mount a usb drive in linux

sudo mkdir /mnt/usb-drive
sudo chown <myusername>:<myusername> /mnt/usb-drive/
sudo fdisk -l # to find the device name.  For Example "/dev/sde1" 
sudo mount -o uid=<myusername>,gid=<myusername> <devicename> /mnt/usb-drive
# to unmount
sudo umount /mnt/usb-drive