![]() Even though, most trial software products are only time-limited some also have feature limitations. ![]() After that trial period (usually 15 to 90 days) the user can decide whether to buy the software or not. Trial software allows the user to evaluate the software for a limited amount of time. Demos are usually not time-limited (like Trial software) but the functionality is limited. In some cases, all the functionality is disabled until the license is purchased. Demoĭemo programs have a limited functionality for free, but charge for an advanced set of features or for the removal of advertisements from the program's interfaces. In some cases, ads may be show to the users. Basically, a product is offered Free to Play (Freemium) and the user can decide if he wants to pay the money (Premium) for additional features, services, virtual or physical goods that expand the functionality of the game. This license is commonly used for video games and it allows users to download and play the game for free. There are many different open source licenses but they all must comply with the Open Source Definition - in brief: the software can be freely used, modified and shared. Programs released under this license can be used at no cost for both personal and commercial purposes. Open Source software is software with source code that anyone can inspect, modify or enhance. Freeware products can be used free of charge for both personal and professional (commercial use). It works the same way, but instead of just text, you display a full web page or generate your own HTML code using your own script.įreeware programs can be downloaded used free of charge and without any time limitations. If you are not happy with the Script Geeklet, Web will unleash your creativity. This is the little brother in the Geeklet family, but very powerfull. Whether it is a remote webcam, a network graph stored on a monitoring server, or a folder full of holidays pictures, GeekTool can put it on your desktop and refresh automatically, rotate through pictures, etc. GeekTool will execute the script and display the output the way you want it. One of the most powerful Geeklets! All you need is a script to get the information, then you can display it on your desktop. Specifically designed for log files, you can keep an eye on what is going on right from your desktop. There are four modules available that you can use for different types of information. It's basically a full-blown programming language, designed to deal with text files one line at a time, and it's really useful it's also something you can pick up a little bit at a time, if you're so inclined.GeekTool is a macOS application that lets you customize your desktop with great flexibility. Type "man awk" in the terminal for a full description of the command. If max is not greater than zero, then something wrong happened (maybe ioreg doesn't have a line which says "MaxCapacity") and so return the character "?". If the variable max is greater than zero, then take the contents of the array labelled "CurrentCapacity", divide it by max, and multiply by 100. Next it prints out the result of the formula max>0?100*c/max:"?"which is an if-then statement (with the form test?true:false awk stole this notation from C). Second, it defines the variable max to be the contents of the array labelled "MaxCapacity" (which was defined in the first part of the process). ![]() First it sets OFMT="%.2f%%", which means to change the output format so that it outputs real numbers with two decimal places followed by a percentage sign (as above). The END segment means to run the following command after you're done reading in standard input. (Unlike in some languages, awk's arrays can be labelled with text, not just numbers.) ![]() Whenever column 3 ($3) contains the word "Capacity" ($3~/Capacity), it runs the command "c=$5", which stores the fifth column into an array (a box) labelled with the contents of the third column. This awk command starts by reading in each line of ioreg -l, one at a time. The printf command calculates $10/$5*100 (that is, the 10th column divided by the 5th column, times 100) and prints it as a floating-point number with 2 decimal places ("%.2f") followed by a percentage sign ("%%").Īwk '$3~/Capacity/ ' (So $5 is the 5th column's data and $10 is the 10th column's). ![]() This first awk command reads the standard input, one line at a time (if necessary I'm guessing only one line is being sent to it here), and splits the line into columns, the data in column c having the name $c. ![]()
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