ref: d9ff373a3ca08c97227c031a8d43bd7b1eae16cb
dir: /clear/
#!/bin/rc # clears all the output from programs, # leaving only the command prompts grep `{echo -n '^'^$prompt(1)} </dev/text | \ grep -v '^'^$prompt(1)^'(clear|"")' | \ uniq >/tmp/clearing.$pid cp /tmp/clearing.$pid /dev/text rm -f /tmp/clearing.$pid