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On 16 January 2023, William Denton wrote: > $ while read line; do echo $line | tr -dc "," | wc -m; done < foo.csv > > counts.csv > $ grep -v 2 -c counts.csv Augh, I meant this, showing line 3 has the problem: $ grep -v 2 -n counts.csv 3:3 Bill -- William Denton https://www.miskatonic.org/ Librarian, artist and licensed private investigator. Toronto, Canada CO₂: 419.29 ppm (Mauna Loa Observatory, 2023-01-15)