Useful MacOS Commands

useful.zsh

# Check the current status of System Integrity Protection (SIP)
csrutil status

# Reset Permissions on MacOS Sierra the same way you used to with previous versions of OS X.
# You may need to disable SIP before this works. I suggest re-enabling SIP afterwards. 
diskutil resetUserPermissions / `id -u`

# Returns file/directory permissions formatted as number values resembling those you would use with chmod
stat -f '%A %N' *

# Clean up a folder containing many projects

# Remove all folders/files named "node_module" even if there is a space in the name.
find . -name "node_modules" -exec rm -rf '{}' +

# Removes flags for hidden and/or locked files that cannot be deleted.
chflags nohidden,nosappdn,noarch,noschg

# Find processes that are currently using and may have a lock on some file
lsof 

# FInd processes are listening on a specific TCP port (prefix with sudo to see processes not owned by current user)
lsof -n -i4TCP:$PORT | grep LISTEN
lsof -n -iTCP:$PORT | grep LISTEN
lsof -n -i:$PORT | grep LISTEN

# Update MacOS Software & All Homebrew Formulas. 
sudo softwareupdate -i -a; brew update; brew upgrade; brew cleanup;

# Then return brew doctor results that may give hints on broken links or misconfigurations.
brew doctor

# Update atom packages
apm update --no-confirm && apm upgrade --no-confirm

# Update pip python packages
pip install --upgrade $(pip list --outdated | cut -f 1 -d " ") 2>/dev/null

# Update ruby gem packages
gem update $(gem list --local | cut -f 1 -d " ")

# Reload Bluetooth service without rebooting
sudo kextunload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport
sudo kextload -b com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport

# Reload Core Services
sudo killall Finder
sudo killall SystemUIServer

# clear the local DNS cache on macOS Sierra 10.12.0
sudo killall -HUP mDNSResponder
 
## kill using port
kill -9 `lsof -i:<port_number> -t`
 
# Find things listening on ports on  Mac
lsof -n -i4TCP:$PORT | grep LISTEN

# Reset Launchpad Layout
defaults write com.apple.dock ResetLaunchPad -bool true; killall Dock