ref: fa63d0c70294c1e4a50d81528c59e0f0bb95e95f dir: /watch/
#!/bin/rc # calls a command every second, replacing its output with the new one rfork ne a0='' while(){ a=`"{$*} echo -n $a0 | tr -c '' '\x08' echo -n $a a0=$a sleep 1 }