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Andrew Fletcher
In Vim, following is an outline of the vi(m) functions you can utilise whilst in command mode - yes they are case sensitive action outcome a change to insert mode (after cursor) A change to insert mode (at end of line) dd delete one line G go to end of the file 1G go to top of the file i change to insert mode (before cursor) J merge next line with this one p paste deleted or yanked text after cursor P paste deleted or yanked text before cursor r replace one...
Andrew Fletcher
Installing PHP on OSX and it installed PHP 8.2.x.  However, for my...
Andrew Fletcher
Recently I have been investigating one of my Linux server's speed using the...
Andrew Fletcher
Trying to have a chat recently, and Microsoft Teams would not open on MAC OS....
Andrew Fletcher
How do you generate a .pem file from an existing .ppk key? Is putty on your...
Andrew Fletcher
I’m recently doing an IoT project. I wanted to investigate the network layer, and to do so I use Wireshark to capture the network traffic between my iOS apps and IoT hardware. Let’s see how to start packet sniffing using Wireshark!   Install Wireshark Wireshark is free and open-source. You can download Wireshark from its official website https://www.wireshark.org/. Once installed, open Wireshark and run the following command to check the existing interfaces: ifconfig...
Andrew Fletcher
Regular expressions (regex) are extremely useful in extracting information from...
Andrew Fletcher
Whilst updating nodejs and npm on a Centos 6 or 7 server running Apache, I...
Andrew Fletcher
Recently I had an error with a domain smtp server not recognising port 587....