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add awk

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onceupon 2016-07-15 17:12:52 +08:00 committed by GitHub
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@ -304,6 +304,11 @@ awk '{split($2, a,",");for (i in a) print $1"\t"a[i]} filename
awk -v N=7 '{print}/bbo/&& --N<=0 {exit}'
```
#####print filename and last line of all files in directory
```bash
ls|xargs -n1 -I file awk '{s=$0};END{print FILENAME,s}' file'
```
#####add string to the beginning of a column (e.g add "chr" to column $3)
```bash