Once as you get to know your Mac and you are more confident in how it works, and what everything does, you may want to starting playing with the system files. Usually I strongly suggest you don’t play with any of them to be on the safe side. But every so often you may need to edit a certain file to achieve a specific task. For example if you are using the web server built into a Mac and you want to edit the httpd.conf file. Normally you would have to give yourself permission to edit the file, and then open up it up. Or you could use vim or pico, a Terminal file editing program. Both of these take a while to learn (especially vim and pico) or take a long time to implement (changing file permissions). What we want is the ability to give TextEdit root powers to edit these files, while still using the GUI of TextEdit. Its rather simple.
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