Mac OS

Helpful Mac CLI Settings

Mac tries to be the os where everything just works, but there are actually a lot of really powerful and useful settings that do not appear anywhere in the UI. This is a growing list of the hidden options that I use.

Show hidden files

Open finder to a folder

Press Command + Shift + . (period key)

Avoid creating .DS_Store files on network or usb drives

If a Windows machine access a shared storage device, you have probably ran across these extra files in every folder from a Mac that just opens the directory.

defaults write DSDontWriteNetworkStores -bool true defaults write DSDontWriteUSBStores -bool true

Disable Spotlight

Spotlight is a nice tool when it works, but if you catch your machine CPU and fans maxing out, there is a good chance it is from mdsync.

sudo mdutil -a -i off

mdutil -s #Print indexing status

Or, if you have a drive/folder you want spotlight to ignore, add the file .metadata_never_index

Screenshot Format

While PNGs are lossless and nice, they often are 5x as large as their JPG conterparts

defaults write "type" -string "jpg"

defaults write "type" -string "png"

Hide Desktop Icons

If you have a messy desktop but want to illusion of order when you share your screen, turn off your desktop icons. (the files are all still accessible)

defaults write "CreateDesktop" -bool "false" && killall Finder

Restart without entering filevault password

Sometimes you need to do a remote restart of a system, and you don’t want it stuck at the power on password screen, this allows you to reboot and fully startup.

sudo fdesetup authrestart

Use your Fingerprint for sudo password

Tired of typing your password anytime you sudo a command, this lets you use your fingerprint instead.

sudo chmod +w /etc/pam.d/sudo
sudo vi /etc/pam.d/sudo 
# add the next line after 'auth include sudo_local'
# auth       sufficient
sudo chmod -w /etc/pam.d/sudo
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I'm a 35 year old UIUC Computer Engineer building mobile apps, websites and hardware integrations with an interest in 3D printing, biotechnology and Arduinos.

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