awk range need to be correct

Question

I need to check all number which starts from 2,3,7 or 8

awk -F, 'BEGIN { OFS = FS } $19 ~/^[2-3]/ 
awk -F, 'BEGIN { OFS = FS } $19 ~/^[7-8]/

I need to combine in 1 line like (it's incorrect, it just my try)

awk -F, 'BEGIN { OFS = FS } $19 ~/^[2-3-7-8]/

How can I correct this ?

Just list the values in the bracket expression, you have no ranges, use `awk -F, 'BEGIN { OFS = FS } $19 ~/^[2378]/` — Wiktor Stribiżew, Jun 04 '20 at 10:01
A duplicate of [Reference - What does this regex mean?](https://stackoverflow.com/questions/22937618/reference-what-does-this-regex-mean) — Wiktor Stribiżew, Jun 04 '20 at 15:22

score -1 · Answer 1 · answered Jun 04 '20 at 12:05

-1

awk -F, 'BEGIN { OFS = FS } $19 ~/^[2378]/

answered Jun 04 '20 at 12:05

user448810

1 Answers1