Interesting ubuntu trick
1) tail cannot watch no space left on device. Solutions a) echo 900000 | sudo tee /proc/sys/fs/inotify/max_user_watches Or Place b) "fs.inotify.max_user_watches=16384" in /etc/sysctl.conf 2) How to remove all files and sub-directories in a directory WITHOUT deleting the directory in bash? Solutions rm -rfv dontDeleteMe/*