Grep for 3.07 using regex

Question

I am attempting to search for 3.07 in a log file however I'm having difficulty with the correct regex. I have tried the following but this returns values matching 3.0 or 3.7:

grep '[3]\.[07]' GDCBAdapter.log

score 2 · Answer 1 · answered Nov 17 '16 at 15:09

2

The solution is very simple, you just have to:

grep '3\.07' GDCBAdapter.log

No need for character class, i.e [07] as it matches 0 OR 7.

answered Nov 17 '16 at 15:09

Maroun

94,125
30
188
241

score 2 · Accepted Answer · answered Nov 17 '16 at 15:10

2

No regex is required at all. You can simply search for fixed strings using -F:

grep -F '3.07' GDBCAdapter.log

man grep

answered Nov 17 '16 at 15:10

hek2mgl

152,036
28
249
266

score -2 · Answer 3 · answered Nov 17 '16 at 15:07

-2

Just realised:

grep '[3]\.\08' GDCBAdapter.log

answered Nov 17 '16 at 15:07

EamonnMcElroy

587
6
20

Why 3 is inside a class? – Maroun Nov 17 '16 at 15:10
Cause I was copying it from elsewhere and forgot to remove it. Still had the same end result but not too efficient I guess. – EamonnMcElroy Nov 17 '16 at 15:23

Grep for 3.07 using regex

3 Answers3