This note explains how to show a big clock on Linux without using an application or having a browser opened on time.is. Just your terminal and a few commands and you’ll get someting like this :
It depends on figlet tool to make large character on terminal so you need to install it :
sudo apt install figlet
Then type in your terminal :
while true; do printf '\033[2J\033[H'; date +'%T' | figlet -ctW; sleep 1; done
Quick explanation :
while true; do ... ; done
This is how we define an infinite loop. (Ctrl+C to interrupt it)
Clear screen and fix the cursor position to top-left. For the record, the escape sequence \033[2J clear the entire screen and \033[H send the cursor at home. cf the Wikipedia page on ANSI escape code for other useful sequences.
Output the time as hours:minutes:seconds (shortcut to %H:%M:%S).
| figlet -ctW
Make large letters from the previous input. See the | befor it ? This means the previoux command (date) is piped into figlet.
Wait for 1 second before looping.