Under the hood, macOS X has a Unix shell that lets you runs powerful command-line utilities. Viewed images may be stored locally, accessed across a local area network, accessed on a remote ftp site, or viewed over the Internet via an HTTP server using the MrSID Web Developer's Toolkit to transmit MrSID. The MrSID Online Viewer for Macintosh allows Macintosh users to view multi-resolution MrSID imagery in Netscape or Internet Explorer.
Mrsid Viewer Software Can OpenIt runs on any Mac with a 64-bit Intel processor or an Apple Silicon chip. VLC media player requires Mac OS X 10.7.5 or later. MapInfo Professional is compatible with Windows XP/Vista/7/8/10 environment, 32-bit version.Devices and Mac OS X version. Wor' are the extensions this PC software can open. Most of the Open Source GIS stack is provided, including GEOS, GDAL, QGIS, and PostGIS.![]() You'll type the commands into the Terminal and then press return to execute them.SEE: Windows, Linux, and Mac commands everyone needs to know (free PDF) (TechRepublic) How to update your Mac with the softwareupdate Terminal commandIf you want to update your Mac remotely via SSH, or you don't want to go through the steps to open System Preferences and perform the updates, your Mac can also be updated directly through the Terminal.To do this, I'll utilize a command called softwareupdate. Find this application by opening the Finder and navigating to Applications | Utilities. To use these command-line tips, I utilize the Terminal application that ships with every copy of macOS-there's nothing extra to install or download. Current version: 15.21.4.Learn basic command-line tips that every Mac user and large businesses relying on and managing Macs should know. Mac pro late 2013 partition for dual boot both mac osWith the Terminal, you can easily copy the contents of a file (or the output of any command) by piping the output of the command to pbcopy.In this example below, I'll pipe the output to the clipboard of a file using the cat command on a file on the Desktop: cat ~/Desktop/myfile.txt | pbcopyWhen you run this command, it will cat (echo the output of) the file called "myfile.txt" on the Desktop. If a restart is required after installation, you'll be alerted that the restart is required to complete the install.As a developer, I often open a file only to copy the contents of it and then close the file. Open Terminal and type the following command to check for, download, and install any available updates for your system: softwareupdate -i -aWhen you run this command, the utility will open, check for updates in the same manner as System Preferences, and then download and install them if any updates are found ( Figure A). The top command also displays memory, CPU and disk stats at a glance.To close this view, either close the Terminal window or go back to the command line prompt by pressing Control + C to quit the top command. You'll also see a running list of the top apps using the CPU and their state, ports used, memory per app and more ( Figure B).The top command shows a live view in the Terminal with the list of apps with the most CPU utilization. However, if you want to instantly inspect the top items on your Mac running and some simpler stats about your system utilization, you can run the top command by typing this into the Terminal: topYou'll see the stats of your system updated in the Terminal window, including the memory, CPU and disk utilization. How to view system utilization with the top Terminal commandOn the Mac, there's a handy utility called Activity Monitor that lets you inspect all sorts of system features and utilization across the CPU, memory, disk and more. When run, these commands will flush the DNS cache on your Mac and will begin repopulating it on all subsequent domain lookups. Type in your password when prompted and then press return. Fortunately, you can easily resolve this by flushing the DNS cache on your Mac and allowing it to look up domains on the remote DNS service instead.To do this, find your version of macOS below and run the command for your version.MacOS 10.12 (Sierra) and later sudo killall -HUP mDNSResponder sudo killall mDNSResponderHelper sudo dscacheutil -flushcacheMac OS X 10.11 (El Capitan) sudo killall -HUP mDNSResponderThese commands use the sudo keyword, which means that you will need to enter your macOS user account password before the command can execute. How to clear the DNS cacheHave you ever been in a situation where a website updated or changed servers, but your Mac was still navigating you to the old site? This is often related to the DNS cache on your computer being out of date and not updated with the new domain resolution. The command will then start counting down the time and prevent your Mac from sleeping during that time.You can also just run caffeinate, and it will keep your Mac from sleeping for as long as the command is running.You can exit either caffeinate command early by pressing Control + C (or closing the Terminal window) and allowing your Mac to go to sleep per the system settings again. ![]() If you're still unable to get it to reboot after entering this command, add "sudo" in front, which will require your administrator password but guarantee to shut down your Mac every time.SEE: How to migrate to a new iPad, iPhone, or Mac (TechRepublic Premium) How to use the Terminal command qlmanage to get a QuickLook previewThe macOS QuickLook feature provides an easy way to view images, PDFs and other documents in place in the Finder without the need to open the document's app by pressing Space when a file is selected in the Finder.This same QuickLook preview is also available through the Terminal on any supported file by typing this command: qlmanage -p ~/Desktop/text.txtThis example command above opens the QuickLook window with the file passed into the command. Simply open the Terminal and type: shutdown -r nowWhen you enter this command into the Terminal and press return, your computer will go down for a shutdown immediately. How to force macOS to shut downYou might run into an issue occasionally where you cannot shut down your Mac for instance, maybe an application or a background process has hung and will no longer successfully quit and is causing the shutdown to stall through the normal means of shutting down your Mac.There is another option, and it involves the Terminal. This is great for determining if you need to restart your Mac. You can figure out how long your Mac has been running nonstop with the uptime command in the Terminal by typing the following command: uptimeThis simple command will allow you to get the number of days, hours and seconds since the last time your Mac rebooted.
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