Tag Archive: Line


How to Download Full MacOS Installers from Command Line

Mac users can download full complete MacOS installers directly from the command line. This is an incredibly useful feature particularly if you want to build USB boot drive installers, you manage multiple Macs, or you simply want to have full access to a complete installer application of MacOS for any other purpose. With this particular … Read More

How to Log Off Another Users ssh Connection by Command Line in Mac OS or Linux

Using SSH, or Secure Shell, is a very common way to establish remote connections to Mac and Linux machines from the command line. If you’re a systems administrator, or if you have SSH enabled on a Mac for another reason, you may eventually need to log off another users ssh connection. There are several ways … Read More

How to Adjust Screen Brightness on Mac from Command Line

Want to change the screen brightness on Mac from the command line? You can use the Terminal to adjust screen brightness to be brighter or dimmer with a few different methods, as we’ll demonstrate here. First we’ll show you a handy way to increase or decrease Mac screen brightness using osascript at the command line, … Read More

How to Get Octal File Permissions from Command Line in Mac OS

Command line users are likely familiar with using chmod to set file permissions in numerical or octal format, for example running a command like ‘chmod 755 filename’, but have you ever wondered how you can get file permissions in octal format? If you want to see or view the octal numerical value of permissions of … Read More

How to Fix “Command Not Found” Errors in Mac Command Line

Advanced Mac users that utilize the command line may occasionally encounter a “command not found” error message when attempting to run something in the command line. The “command not found” error in the Terminal can surface for several reasons in the command line of MacOS and Mac OS X, as we’ll discuss here, and of … Read More

How to Write Image Files to SD Card with dd from Command Line of Mac or Linux

Need to write an image file to an SD card? The command line ‘dd’ tool can do that for you, writing a disk image .img file to an SD card with minimal effort. A nice perk to using ‘dd’ for writing image files to an SD card is that it works for Mac OS as … Read More

Get Terminal for iOS to Bring the Command Line to iPad and iPhone

Ever wished you had a native command line in iOS? You know, like a Terminal app for iPad and iPhone? Wish no more, the aptly named Terminal for iOS is here, and it’s free! Terminal is a sandboxed command line environment for iOS that has over 30 commands currently available, covering many of the most … Read More

How to Count Lines of a File by Command Line

Need to get the line count of a text file or document? Counting lines of any file is easy at the command line, and the command for line counting is the same in all modern Unix based operating systems, meaning this line counting trick will work the same on Mac OS and Mac OS X, … Read More

Get Instant Command Line Access from Anywhere in Mac OS with iTerm2

If you’re a command line user, you can imagine that it’d be useful to have a Terminal window available instantly to you from anywhere on the Mac, whether you’re currently in the Finder, Safari, Xcode, or any other application entirely. Well there’s no need to imagine, with iTerm you can have an instantly available terminal … Read More

How to Use diff to Compare Two Files at Mac Command Line

Need to quickly compare two files for differences? The command line ‘diff’ tool offers a great choice for users comfortable with the Terminal. Diff allows you to easily compare two files, with the command output reporting back any differences between the inputted files. The diff command is available by default on the Mac, and it … Read More