zhv/cli/sed.md

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# init
* dload csv and check file
```
unzip -C ~/Downloads/zhv.zip -d ~/Downloads/
ls -ltha /home/begerad/Downloads/zHV_aktuell_csv.2023-08-04.csv
wc -l /home/begerad/Downloads/zHV_aktuell_csv.2023-08-04.csv
head -n2 ~/Downloads/zHV_aktuell_csv.2023-08-04.csv
```
# sed
* extract header
```
sed -n '1p' ~/Downloads/zHV_aktuell_csv.2023-08-04.csv
```