Warning: if You merely use a single > you are going to overwrite the contents with the file. To make sure that will not ever happen, you may insert set -o noclobber towards your . Note: I initially just meant to mention this in my remark to Bob Enohp's answer. https://saveonpetsuppliesdubai13456.tokka-blog.com/37485465/5-simple-statements-about-cat-shop-explained