Get gcc version number and compare with bash

Question

I want to check gcc version whether >= 9.1.

First, I type this shell:

$ gcc --version | grep gcc | awk '{print $3}'

I get following in my computer after I type above shell:

9.1.0

I know bash only can compare number of integer,

such as command "-gt".

I want to compare gcc which version >= 9.1 .

How do I do?

RavinderSingh13 · Accepted Answer · 2019-08-12T09:16:32.643

0

You need not to use grep with awk, awk could look for string and could do comparison too. Could you please try following.

gcc --version | awk '/gcc/ && ($3+0)>9.1{print "Version is greater than 9.1"}'

edited Aug 12 '19 at 09:16

answered Aug 12 '19 at 08:57

RavinderSingh13

1

Hi RavinderSingh13: Please add \"\ last \greater than 9.1\ – curlywei Aug 12 '19 at 09:01
1

after added, this command work normal – curlywei Aug 12 '19 at 09:02
1

@curlywei, Thanks for letting me know, when I checked I haven't seen a `"` but no issues as per your suggestion I changed from `$3` to `$3+0`, kindly check it once and let me know? – RavinderSingh13 Aug 12 '19 at 09:03
Hi: Before add \"\ last \greater than 9.1 add \"\, command report me error message: https://imgur.com/egEOCzo – curlywei Aug 12 '19 at 09:08
After added https://imgur.com/kxn91RH – curlywei Aug 12 '19 at 09:09
@curlywei, sure, feel free to edit my answer too, so that others could be benefited. – RavinderSingh13 Aug 12 '19 at 09:10
I try to edit, but when I save change, I get this error message of edit: Edits must be at least 6 characters; is there something else to improve in this post? – curlywei Aug 12 '19 at 09:14
@curlywei, add some text details in it and it should be fine :) – RavinderSingh13 Aug 12 '19 at 09:14

1 Answers1