Useful tips for everyday
What is the purpose of su command? Change user ID or become superuser su/Function What is in su command? The su command is used to…
How do I change sudo PATH? 3 Answers Use the full path: sudo ~/bin/my-command ; or. Add the directory containing the command to secure_path .…
What is Forbidden nginx? “403 Forbidden” is an all-purpose NGINX error which indicates that you have asked for something that NGINX – for a variety…
How do I copy the contents of a file? Open the context menu (right click) for any file on the tree view pane and select…
How many channels should audio have? Your basic stereo system (a 2.0 system) has two channels of sound—left and right—produced by two speakers. A 2.1…
What is the difference between sed and awk? The main difference between sed and awk is that sed is a command utility that works with…
How to find missing lines in one file? Here’s a simple awk (nawk) script (inspired by the scripts linked-to in Konsolebox’s answer) which accepts arbitrarily…
How do I download and install Debian 9? Download Debian 9 DVD from here, put the OS burned DVD into the DVD-ROM drive, change the…
How do I make Firefox full screen in Ubuntu? Keyboard Shortcuts Go Full Screen via the keyboard. Toggle Full Screen keyboard shortcut: Press the F11…
Is there a way to edit a.bashrc file? Editing .bashrc files. You can edit bashrc to add your own commands in any terminal text editor.…