Useful tips for everyday
Can I use my laptop as a hotspot for Ethernet? Just plug an Ethernet cable into your laptop and connect the other end to the…
How much space does Btrfs use? Chunk allocation: BTRFS allocates space for your data in chunks. Multiple devices: BTRFS supports multiple devices working together, RAID-style.…
What is a source script? source is a shell built-in command which is used to read and execute the content of a file(generally set of…
When should you declare variables? It’s best to declare variables when you first use them to ensure that they are always initialized to some valid…
Why do I get an error when I use rsync? One of the common scenarios where customers usually face this error is when they try…
How do I undo deleting a folder? Click Deleted files in the left sidebar. Click on the name of the deleted file or folder you…
How do I find out when PGP expires? What to do when your GPG/PGP key expires Find the ID of the expiring key, e.g. with…
How do I connect Ethernet directly? Locate the Ethernet port on your computer or laptop. Insert one end of the network cable into the Ethernet…
Can shell code have null characters? Printing the null character On many recent shells you can write null character with dollar single quotes format $’\0′…
How do I fix a WiFi authentication problem? How to fix Wi-Fi authentication problems on Android Toggle Airplane mode. Forget and reconnect to the Wi-Fi…