Useful tips for everyday
What is the tilde command? The tilde (~) is a Linux “shortcut” to denote a user’s home directory. Thus tilde slash (~/) is the beginning…
Can you put a tire on the wrong way? A: No, you cannot change the rotation of a directional tire. Something else to consider is…
What happens when you pass no command line arguments? If you don’t pass any command-line arguments, args is empty, but it’s still there. As you…
What is symmetrical voltage? When the system is unbalanced the voltages, currents and the phase impedances are in general unequal. Such a system can be…
What happens to your layers after you convert your color profiles? When you convert color profiles in Photoshop, it will flatten all the layers by…
How to fake a package version installed in Apt? Install it by running sudo apt-get install -y equivs Once installed, you generate a template “control”…
How do I check file descriptor limit? Steps Display the current hard limit of your system. Edit the /etc/sysctl.conf file. Edit the /etc/security/limits. Reboot your…
Can you have two subdomains? Each domain name can have up to 500 subdomains. You can also add multiple levels of subdomains, such as info.blog.yoursite.com.…
How do you cross reference an appendix in LaTeX? Use \appendix\section{foo}\label{sec. foo} and then call its label \ref{sec. foo} . \label should be placed after…
Does CTE improve query performance? One major difference is that the optimizer can use statistics from the temporary table to establish its query plan. This…