I’ve been a proud Apple Switcher since 2006, but it took me a while to take all of my (not so) secret Windows knowledge and learn all new tips and tricks on the Mac. Being able to become as efficient in the world of Apple as I was with Windows didn’t take as long as I thought, but it did have its bumpy parts.
Because of that, and my natural tendency to share knowledge, I’ve compiled a list of fun tips and tricks in Terminal (i.e. command-line stuff) that I’ve learned over the last few years. By no means did I discover these on my own… they are a compilation of OSX tips that I’ve found online or from friends with much more Mac knowledge that I.
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Show all files, even system files, in Finder:
Open Terminal and type “
defaults write com.apple.Finder AppleShowAllFiles YES“.Hold down the Option key and click on the Finder icon in the Dock and press Relaunch. You may have to wait a second or two for the relaunch option to display.
This one is a life saver for me. I hate not being able to see all files, so this is a must in my Mac machines.
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Show full file paths in Finder:
Open Terminal and type “
defaults write com.apple.finder _FXShowPosixPathInTitle -bool YES“.Another must-have! There are so many useful reasons to see the full file path in Finder, I don’t get why it’s not on by default.
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Change the default (PNG) file format for screenshots:
Open Terminal and type “
defaults write com.apple.screencapture type EXTENSION“, whereEXTENSIONcan be any of the following: BMP, GIF, JPEG-2000, JPEG, PDF, PICT, PNG, PSD, SGI, TGA, or TIFF.Don’t get me wrong, I love PNGs, but sometimes you want a JPG and don’t want to crack open Photoshop or some other graphics tool to do it.
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Securely delete files from a drive:
Open Terminal and type “
diskutil secureErase freespace 3 /Volumes/DRIVE” whereDRIVEis the drive you want to securely delete.If you’re not comfortable using the command line, perhaps you should skip this one… it can be a dangerous tool in the wrong hands.
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Create your own audio book with your Mac’s default voice synth:
Open Terminal and type “
say -o AUDIOBOOK.aiff -f FILE.txt“, whereFILE.txtis the path to a text file you want read.My kids love this one because they think there’s a robot inside my MacBook Pro that is reading to them.
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Force Apple Mail to show plaintext vs. HTML email:
Open Terminal and type “
defaults write com.apple.mail PreferPlainText -bool TRUE“.I love HTML, but HTML email is, more often than not, a huge annoyance. I turn it off whenever possible.
I hope you’ve enjoyed these Mac OSX tips and tricks. If you have any that you feel are a must-have, or if you know of another way of doing any of the above, please let me know in the comments for this post.

