Ch-9 Getting Data

[Raghav-Bell]

Below are the snippets of codes from the book . I got underlined errors while running them on Jyupyter notebooks ,Python 3 .
Please resolve
type SomeFIle.txt | python egrep.py "[0-9]" | python line_count.py (on P- 112)
Error : Invalid syntax
process(date,symbol,closing_price) (on P-115)
Error : name 'process' is not defined