Shell
Process Every File in Directory
find /some/directory -maxdepth 1 -type f -exec cmd option {} \; > results.out
Find File by Content
find . -type f -name "*.java" -print | xargs grep "window"
Display Specific Column from Text
cat * | awk '{print $2}'
List all open ports for one process
netstat -anp46 | grep LISTEN | grep <processid>
Redirect stderr and stdout
test.sh &> /tmp/log