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onceupon 2016-08-18 11:04:58 +08:00 committed by GitHub
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@ -419,10 +419,15 @@ awk '{printf("%s\t%s\n",NR,$0)}'
e.g.
seperate
David cat,dog
into
David cat
David dog
detail here:　http://stackoverflow.com/questions/33408762/bash-turning-single-comma-separated-column-into-multi-line-string
```bash
awk '{split($2,a,",");for(i in a)print $1"\t"a[i]}' file