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Update awk_sed.md

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Patrick Wagner
2024-03-15 15:50:00 +01:00
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### AWK and SED Tips and tricks
# AWK and SED Tips and tricks
## AWK
# Calculate total or average
### Calculate total or average
```sh
awk '{sum+=$1; n++} END {print sum / n}'
```
or using builtin row counter NR
```sh
awk '{sum+=$1} END {{if NR > 0} print sum / NR}'
```