Jay Versluis In the GNOME desktop, there is no obvious way to tell which version you’re running by way of the GUI. Instead, we need to consult the command line and try out a couple of commands to find out more. Here’s how. Let’s open a Terminal session and do some hacking. GNOME 2.x If you’re running … Read more
I had a weird phenomenon on a Multisite installation the other day. I can’t tell you with which update exactly it happened, as I only write a post on that site once every couple of months, but it must have been around the 4.7 or 4.8 upgrade. Here’s what was happening: I could log into … Read more
Not only is Xcode an excellent IDE for iOS and macOS apps in both Swift and Objective-C; it does just as fine a job for regular C and C++ code. This includes all the features we know and love, such as code completion, version control, and all the rest of it.
Let’s see how to use Xcode 8.3 for C and C++ development.
A Chinese Version of this article can be found here.
Something rather strange happened to me today: Safari 10 on macOS Sierra refused to let me login to YouTube. All it did was constantly refresh the page in an endless loop, or just display the front page of YouTube. I cleared the caches, reset the history, but no trick seemed to solve the problem. When … Read more
Bulk renaming files can be done with the rename command. It shares many similarities with cp and mv, but its simplicity can be so staggering that its difficult to figure out how to use it. If we just type “rename” at the command prompt, all we get is the message rename call: rename from to … Read more
Although many alternatives exist, I like using vi for all my command line editing needs. To save changes, I usually use SHIFT + Z + Z, exiting vi under most circumstances. But sometimes, this trick doesn’t work because of write permission problems. In such cases, vi doesn’t close with the above command. Instead, we must … Read more
Shell Scripts (BASH Scripts) can access command line parameters using the the variables $1, $2, $2 and so forth, up to $9. In fact, more parameters can be accessed by using curly brackets, like ${10}, ${187} and so forth. Here’s an example: #!/bin/bash if [[ $1 == “x” ]]; then echo “Statement is true” else … Read more
We can access parameters passed via the command line in our PHP shell scripts. Those are stored as an array in the variable $argv. Consider this: #!/usr/bin/php