truncate
How to reduce file size by truncating it truncate -s 0 {filename.txt} src: http://www.cyberciti.biz/faq/truncate-large-text-file-in-unix-linux/
How to reduce file size by truncating it truncate -s 0 {filename.txt} src: http://www.cyberciti.biz/faq/truncate-large-text-file-in-unix-linux/