cat f.txt | awk -F, '{$9=null;print $0}' | awk 'BEGIN{OFS=",";}{print $1,$2,$3,$4,$5,$6,$7,$8,$9,$10}' > afterdelete.csv
shell删除指定行
诸业皆是自作自受，休咎祸福，尽从心生。
cat f.txt | awk -F, '{$9=null;print $0}' | awk 'BEGIN{OFS=",";}{print $1,$2,$3,$4,$5,$6,$7,$8,$9,$10}' > afterdelete.csv