how to copy hidden files one folder up:

mv ReduxSimpleStarter/.[!.]* .

how to delete all hidden files:

find . -name ".*" -exec rm -rf {} ;

SSH

SSH-Copy Add public ssh key to the server: $ssh-copy-id -i ~/.ssh/id_rsa.pub @ $ssh-copy-id -i ~/.ssh/id_rsa.pub root@director-dev

clear local history: history -c

watch a directory:

watch "ls -l" for e.g. -n 0.1 for interval 0.1 seconds or if you want to keep the result: while true ; do ls -l; sleep 0.1; done

rm only subset e.g. gz and py

rm -rm *{gz,py}

Find (and kill) process locking port 1099 on Mac

You can try netstat netstat -vanp tcp | grep 1099
For OSX El Capitan and newer (or if your netstat doesn't support -p), use lsof lsof -i tcp:1099