Experimente watch
. Na página de manual :
Name
watch
- execute a program periodically, showing output fullscreenSynopsis
watch [-dhvt] [-n <seconds>] [--differences[=cumulative]] [--help] [--interval=<seconds>] [--no-title] [--version] <command>
Description
watch
runs command repeatedly, displaying its output (the first screenfull). This allows you to watch the program output change over time. By default, the program is run every 2 seconds; use-n
or--interval
to specify a different interval.The
-d
or--differences
flag will highlight the differences between successive updates. The--cumulative
option makes highlighting "sticky", presenting a running display of all positions that have ever changed. [...]
watch
will run until interrupted.
Note que "tempo real" teria que ser aproximado por "uma vez por segundo" (por exemplo) aqui ...