Command Line

The command line interface is an alternate method of interacting with OS X, relying on text based command entry to execute commands and perform tasks. It is accessed on the Mac by using the Terminal application. Generally, the command line is considered advanced, and thus it’s usage tends to be more complex than many standard procedures on a Mac.

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Move Cursor Word by Word in Terminal for Mac OS X

Jul 14, 2016 - 6 Comments
retro-terminal-mac-screenshots-3

If you spend a lot of time at the command line, you undoubtedly find yourself adjusting and editing text and commands, and you likely often need to move the cursor to a further position in the Terminal from where it’s actively located. Sure you can use the arrow keys to move left and right on … Read More

List User Accounts on Mac from Command Line

Jul 5, 2016 - 3 Comments
Terminal in OS X

Mac administrators may find themselves in a situation where they need to display a list of all user accounts on a particular Mac by way of the command line. We’ll review a few methods for advanced individuals to list all accounts, both user and system, on any Mac with any version of Mac OS X … Read More

How to Change Mac System Language via Command Line

Jun 29, 2016 - Leave a Comment
Change Mac system language from command line

Polyglots, learners, and the bilingual often want to change their Mac system language for obvious reasons, but another less obvious situation can occur if you’re troubleshooting a Mac that either originates in another country, had the language changed at some point, or is just set to a different language. Since it can be pretty challenging … Read More

How to Reload bash_profile, zsh profiles from Command Line

Jun 7, 2016 - 4 Comments
Terminal in OS X

For anyone making customizations to their command line appearance, prompt, adding aliases, a new PATH, setting environment variables, or otherwise changing their bash_profile, bashrc, zshrc, and related shell profiles, it’s helpful to know how to quickly reload the profile. Many users simply launch a new shell or open a new terminal window, but there is … Read More

How to Remove a Symbolic Link (Symlink)

May 25, 2016 - 4 Comments
Remove a symbolic link with unlink or rm command

Removing a symbolic link is achieved through the command line, and as we’ll show you, there actually two different ways to undo a soft link. This is aimed at users who spend a lot of time at the command line, but for the less familiar, symbolic links are used in Linux, Mac OS X, and … Read More

How to Change Sudo Password Timeout in Mac OS X

May 5, 2016 - 1 Comment
Change the sudo timeout

Advanced users who spend a fair amount of time in the command line may wish to adjust their sudo password expiration to be more secure (or less secure, by extending the password grace period timeout). Typically this means removing any password timeout so that the default five minute password cache is abandoned, thus requiring the … Read More

How to Secure Erase Free Space on Mac Drives with OS X El Capitan

Apr 28, 2016 - 13 Comments
Erase free space on a Mac drive from the command line

Many Mac users running a modern version of OS X El Capitan have noticed the Secure Erase Free Space feature has gone missing from Disk Utility. What the “Erase Free Space” feature did (and still does in prior versions of Mac OS X) was overwrite the free space on a drive to prevent file recovery, … Read More

Enable a Confirmation When Deleting Files & Folders with rm Command

Apr 21, 2016 - 5 Comments
Terminal in OS X

Most command line users know that the “rm” command for removing and deleting files is quite powerful, able to delete just about any file imaginable within the file system – whether it should be removed or not. Once you add in wildcards and sudo, rm and srm because exponentially more potent and potentially dangerous, so … Read More

Speed Up Time Machine by Removing Low Process Priority Throttling

Apr 17, 2016 - 13 Comments
Speed up Time Machine

It’s well known that all Mac users should set up Time Machine to automate backups of their computer, and while most Mac users let OS X go about backing up to Time Machine at it’s own pace, which sometimes borderlines on glacial, some users may wish to speed the backup process up a bit. With … Read More

How to Show & Verify Code Signatures for Apps in Mac OS X

Mar 14, 2016 - 1 Comment
Check and verify code signing of apps in Mac OS X

Code signed applications allow security conscious users to verify the creator and hash of a particular app to help confirm it has not been corrupted or tampered with. This is rarely necessary for average Mac users, particularly those who obtain their software from the Mac App Store or other trusted sources since the apps are … Read More

How to Change Launchpad Icon Grid Layout in Mac OS X

Mar 9, 2016 - 14 Comments
Change the Launchpad grid icon count in Mac OS X

Launchpad is the quick application launcher available from the Mac OS X Dock and a keystroke that looks quite a bit like the Homescreen of iOS. By default, the Launchpad app grid usually displays icons in 7 rows and 5 columns of apps, but with a little adjustment from the command line of OS X … Read More

Get a Calendar from Command Line for Any Date, Month, Year

Feb 24, 2016 - 9 Comments
Get a calendar from the command line of Mac OS X

Though just about everyone has our phones glued to us with a dedicated calendar app, for users who spend considerable time in the command line it can be more efficient to stay put rather than stray to another app or pick up a different device to flip around in the calendar and find a given … Read More

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