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
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
Have you ever wanted to know what every single possible terminal command was on a Mac? You can list every terminal command available by turning to the command line. What you’ll see is a significant list of terminal commands with over 1400 possible commands to investigate and use, many of which are either helpful or … Read More
The ‘ls’ command lists all files and folders in a directory at the command line, but by default ls returns a list in alphabetical order. With a simple command flag, you can have ls sort by date instead, showing the most recently modified items at the top of the ls command results. This trick applies … Read More
Curl is the powerful command line utility that allows you to transfer data to or from a server or URL. One common function used by developers is to make a POST request with curl, which is what we’re going to cover here. We’ll keep things fairly simple and show three examples to make a POST … Read More
Command line users rely on the ‘kill’ command to terminate a process as defined by the appropriate process identifier (PID). While there’s nothing wrong with targeting processes by their PID, another approach which is often easier is to target a process by name, rather than its unique identifier. There are a few ways to kill … Read More
If you need to view the IP addresses of other hardware on the same LAN (Local Area Network) as a Mac, the command line arp tool works quite well. You’ll quickly find other devices IP and accompanying MAC addresses, which can make direct network connections easier and be helpful for many other network and troubleshooting … Read More
Mac systems administrators may find a need to convert an existing regular user account into an administrator account on a Mac. While most Mac users would be best served by converting account status to admin through the Users & Groups preference panel, advanced users can perform the same function through the Terminal by using the … Read More
Mac users who come from a unix background may appreciate knowing how to implement the equivalent to the Unix “tree” command in macOS and Mac OS X. There are actually a few different ways to show a folder tree in the Terminal of Mac OS X, we’ll cover an easy tree equivalent achieved through an … Read More
Ever wished you could make a dialog alert pop-up on the Mac by way of the Terminal? Well it turns out that you can with the always useful osascript command, which allows execution of AppleScript from the Terminal. For those who spend a lot of time at the command line of MacOS, this can be … Read More
