for f in *; do mv "$f" "$f.tmp"; mv "$f.tmp" "`echo $f | tr "[:upper:]" "[:lower:]"`"; done
sudo lsof -nP -iTCP:[puerto] | grep LISTEN
sudo lsof -t -i tcp:[puerto] -s tcp:listen | sudo xargs kill
sysctl -n machdep.cpu.brand_string
for f in *; do mv "$f" "$f.tmp"; mv "$f.tmp" "`echo $f | tr "[:upper:]" "[:lower:]"`"; done
sudo lsof -nP -iTCP:[puerto] | grep LISTEN
sudo lsof -t -i tcp:[puerto] -s tcp:listen | sudo xargs kill
sysctl -n machdep.cpu.brand_string