Developers always need to test code once in a while and there is a way to quickly launch a web server from your current working directory without the need of transferring or uploading your files somewhere else. This can be done in a Linux or MacOS environment and you don't have to install or run a full-blown web server to do this.

What is a /24 or a /22?

IP address are divided into portions. One part identifies a network and the other part identifies a specific machine or host within the network. IPv4 subnet masks identify the range of IP addresses that make up a subnet, or group of IP addresses on the same network. For example, a subnet can be used to identify all the machines in your house, building, department, geographic location, or on the same local area network (LAN).

In IPv4, the subnet mask 255.255.255.0 is 32 bits and consists of four 8-bit octets. Example thhe address 10.10.10.0 subnet mask 255.255.255.0 me...

If you need to create a copy​‌​​​​​‌⁠​‌‌‌​‌​‌⁠​‌‌‌​‌​​⁠​‌‌​‌​​​⁠​‌‌​‌‌‌‌⁠​‌‌‌​​‌​⁠​​‌‌‌​‌​⁠​​‌​​​​​⁠​‌​​​​​‌⁠​‌‌​​​‌‌⁠​‌‌‌​​‌​⁠​‌‌​‌‌‌‌⁠​‌‌​‌‌‌​⁠​‌‌​‌​​‌⁠​‌‌‌‌​​​⁠​​‌​​​​​⁠​‌‌‌​‌‌‌⁠​‌‌‌​‌‌‌⁠​‌‌‌​‌‌‌⁠​​‌​‌‌‌​⁠​‌‌​​​‌‌⁠​‌‌​‌‌‌‌⁠​‌‌​​‌​​⁠​‌‌​​‌​‌⁠​‌‌‌​​‌​⁠​‌‌‌​​‌‌⁠​​‌​‌‌‌​⁠​‌‌‌​​​​⁠​‌‌​‌​​​⁠ of a man (manual) page of a specific command, type the following on your command shell:

$ man [command] | col -b > filename.txt

Replace [command] with the command of your choice.
This will print the manual page of that command to filename.txt.

Fancy doing things​‌​​​​​‌⁠​‌‌‌​‌​‌⁠​‌‌‌​‌​​⁠​‌‌​‌​​​⁠​‌‌​‌‌‌‌⁠​‌‌‌​​‌​⁠​​‌‌‌​‌​⁠​​‌​​​​​⁠​‌​​​​​‌⁠​‌‌​​​‌‌⁠​‌‌‌​​‌​⁠​‌‌​‌‌‌‌⁠​‌‌​‌‌‌​⁠​‌‌​‌​​‌⁠​‌‌‌‌​​​⁠​​‌​​​​​⁠​‌‌‌​‌‌‌⁠​‌‌‌​‌‌‌⁠​‌‌‌​‌‌‌⁠​​‌​‌‌‌​⁠​‌‌​​​‌‌⁠​‌‌​‌‌‌‌⁠​‌‌​​‌​​⁠​‌‌​​‌​‌⁠​‌‌‌​​‌​⁠​‌‌‌​​‌‌⁠​​‌​‌‌‌​⁠​‌‌‌​​​​⁠​‌‌​‌​​​⁠ in your shell prompt?
There is a way to run a speed test from your Linux Terminal.

To test your Internet connection bandwidth using your shell prompt,
you can install speedtest-cli

$ sudo apt-get install speedtest-cli

then run:

$ speedtest

or just run this directly:

curl -s https://raw.githubusercontent.com/sivel/spe...

Getting this error message at startup?
piix4_smbus 0000:00:07.3: SMBus Host controller not enabled!

Here's how to fix it...

Getting "a start job is running for dev-disk-by.." followed by a 90 second delay during each boot?

Here's what may have happened...