If you're on a corporate operated Mac, you might know about caffeinate command. For many this is disabled. There are valid reasons why you don't want your screen to stay on forever, but there are valid reasons why you would want to keep the screen on and unlocked: builds, tests, monitoring systems ... some corp policies have aggressive screen lock outs. Perhaps you want to run to the bathroom and not have to login to the computer and possibly VPN. Either way, enter chai. A simple bash script to keep your mac awake

```bash chai () { if [ -f ~/.bash_history ] then sed -i.bak '/^chai/d' ~/.bash_history fi if [ -f ~/.zsh_history ] then sed -i.bak '/chai/d' ~/.zsh_history fi history -d $(history 1 | awk '{print $1}') 2> /dev/null local duration=0 if [[ "$1" == "-m" && -n "$2" ]] then duration=$(($2 * 60)) fi local count=0 while true do osascript -e 'tell application "System Events" to key code 126 using {shift down}' sleep 30 count=$((count + 30)) if [[ $duration -gt 0 ]] then if [[ $count -ge $duration ]] then break fi fi if (( count % 60 == 0 )) then echo -ne "\r$count seconds elapsed" fi done } ```