Why use a copy when you can use the original 
Any Posix-compliant operating system (Linux, OSX etc.) will have a version of tail.
Simply runtail -f -n 20 filenameto follow the last 20 lines of the log file in a terminal window.
Why use a copy when you can use the original
Any Posix-compliant operating system (Linux, OSX etc.) will have a version of tail.
Simply runtail -f -n 20 filenameto follow the last 20 lines of the log file in a terminal window.