Use sed within awk
<p>See the line below:</p>

<pre><code>1   164184236   DEL00004514;DEL00004533 N   &lt;DEL&gt;   .   PASS    .   GT:GL:GQ:FT:RCL:RC:RCR:CN:DR:DV:RR:RV   .   .   .   .   0/1:-11.985,0,-35.4847:120:PASS:20:18:19:1:0:0:12:6 .   .   .   .   .   .   .   .   .   .   .   .   .   0/1:-6.1941,0,-9.19766:62:PASS:4:3:2:1:0:0:3:3  .   .   .   .   .   .   .   .   .   .   .   .   .   .   0/1:-9.19536,0,-11.6939:92:PASS:4:5:7:1:0:0:4:4 .   .   .   .   .   .   .   .   .   .   .   .
</code></pre>

<p>My purpose is: for all column, if it's <code>.</code> then I'd like to change into <code>0/0</code>, so how can I do it? I'm thinking about introduce sed in awk, for example: <code>awk ‘{if($n= ".") sed 's/\./0\/0/g'}'</code>
Exactly how should I do</p>