title: Shell Script : Join small gzipped files into larger files without unzipping them
body: <p>I have some 8000 gz files of around 60MB each. I want to merge them into few larger files. So how to do it in a bash script <strong>without unzipping them</strong> ?</p>
  
  <p>Shell script may take input as new-file-size or number of files to combine.</p>
  
  <p>For example say I have 1.gz, 2.gz, 3.gz ... 10.gz
  Now I need one file per say 3 files, so now 1.gz, 2.gz and 3.gz will combine into 1_new.gz and so on.</p>