#TIL
Bash $SECONDS
<< This variable expands to the number of seconds since the shell was started. Assignment to this variable resets the count to the value assigned, and the expanded value becomes the value assigned plus the number of seconds since the assignment. [...] >>
https://www.gnu.org/software/bash/manual/html_node/Bash-Variables.html
$ SECONDS=0 ; sleep $(shuf -i 0-1 -n1) ; echo $SECONDS
È che c'ho da svorta' 'a mmatina