novaBBS - comp.unix.shell - Re: how to capture only 7 or 8 in /etc/redhat-release

Re: how to capture only 7 or 8 in /etc/redhat-release

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From: Keith.S....@gmail.com (Keith Thompson)
Newsgroups: comp.unix.shell
Subject: Re: how to capture only 7 or 8 in /etc/redhat-release
Date: Mon, 05 Jun 2023 10:30:56 -0700
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by: Keith Thompson - Mon, 5 Jun 2023 17:30 UTC

Neeraj Kumar <neeraj.friendslover@gmail.com> writes:
> I have two version; please help me to get the version in the form of 7 or 8

Please show us the content of /etc/redhat-release.

--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Will write code for food.
void Void(void) { Void(); } /* The recursive call of the void */

Re: how to capture only 7 or 8 in /etc/redhat-release

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From: richard....@gmail.com (Richard Harnden)
Newsgroups: comp.unix.shell
Subject: Re: how to capture only 7 or 8 in /etc/redhat-release
Date: Tue, 6 Jun 2023 11:50:53 +0100
Organization: A noiseless patient Spider
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by: Richard Harnden - Tue, 6 Jun 2023 10:50 UTC

On 05/06/2023 18:30, Keith Thompson wrote:
> Neeraj Kumar <neeraj.friendslover@gmail.com> writes:
>> I have two version; please help me to get the version in the form of 7 or 8
>
> Please show us the content of /etc/redhat-release.
>

This is what I have. They dropped 'Server' for version 8 ...

Red Hat Enterprise Linux Server release 5.6 (Tikanga)
Red Hat Enterprise Linux Server release 5.8 (Tikanga)
Red Hat Enterprise Linux Server release 5.11 (Tikanga)
Red Hat Enterprise Linux Server release 6.4 (Santiago)
Red Hat Enterprise Linux Server release 6.6 (Santiago)
Red Hat Enterprise Linux Server release 6.7 (Santiago)
Red Hat Enterprise Linux Server release 6.8 (Santiago)
Red Hat Enterprise Linux Server release 6.9 (Santiago)
Red Hat Enterprise Linux Server release 6.10 (Santiago)
Red Hat Enterprise Linux Server release 7.4 (Maipo)
Red Hat Enterprise Linux Server release 7.6 (Maipo)
Red Hat Enterprise Linux Server release 7.7 (Maipo)
Red Hat Enterprise Linux Server release 7.9 (Maipo)
Red Hat Enterprise Linux release 8.1 (Ootpa)
Red Hat Enterprise Linux release 8.3 (Ootpa)
Red Hat Enterprise Linux release 8.4 (Ootpa)
Red Hat Enterprise Linux release 8.6 (Ootpa)

Also, CentOs ...

CentOS Linux release 7.9.2009 (Core)
CentOS Stream release 8

/etc/os-release doesn't seem to exist prior to version 7, and CentOs
Stream dropped the decimal-point - but VERSION_ID is the easiest to parse.

Re: how to capture only 7 or 8 in /etc/redhat-release

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From: Keith.S....@gmail.com (Keith Thompson)
Newsgroups: comp.unix.shell
Subject: Re: how to capture only 7 or 8 in /etc/redhat-release
Date: Tue, 06 Jun 2023 11:35:26 -0700
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by: Keith Thompson - Tue, 6 Jun 2023 18:35 UTC

Richard Harnden <richard.nospam@gmail.com> writes:
> On 05/06/2023 18:30, Keith Thompson wrote:
>> Neeraj Kumar <neeraj.friendslover@gmail.com> writes:
>>> I have two version; please help me to get the version in the form of 7 or 8
>> Please show us the content of /etc/redhat-release.
>>
>
> This is what I have. They dropped 'Server' for version 8 ...
>
> Red Hat Enterprise Linux Server release 5.6 (Tikanga)
> Red Hat Enterprise Linux Server release 5.8 (Tikanga)
[SNIP]
> Red Hat Enterprise Linux release 8.4 (Ootpa)
> Red Hat Enterprise Linux release 8.6 (Ootpa)
>
> Also, CentOs ...
>
> CentOS Linux release 7.9.2009 (Core)
> CentOS Stream release 8
>
> /etc/os-release doesn't seem to exist prior to version 7, and CentOs
> Stream dropped the decimal-point - but VERSION_ID is the easiest to
> parse.

Is /etc/redhat-release always just one line? (Similar files like
/etc/lsb-release are several lines.)

--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Will write code for food.
void Void(void) { Void(); } /* The recursive call of the void */

Re: how to capture only 7 or 8 in /etc/redhat-release

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From: richard....@gmail.com (Richard Harnden)
Newsgroups: comp.unix.shell
Subject: Re: how to capture only 7 or 8 in /etc/redhat-release
Date: Tue, 6 Jun 2023 19:55:44 +0100
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by: Richard Harnden - Tue, 6 Jun 2023 18:55 UTC

On 06/06/2023 19:35, Keith Thompson wrote:
> Richard Harnden <richard.nospam@gmail.com> writes:
>> On 05/06/2023 18:30, Keith Thompson wrote:
>>> Neeraj Kumar <neeraj.friendslover@gmail.com> writes:
>>>> I have two version; please help me to get the version in the form of 7 or 8
>>> Please show us the content of /etc/redhat-release.
>>>
>>
>> This is what I have. They dropped 'Server' for version 8 ...
>>
>> Red Hat Enterprise Linux Server release 5.6 (Tikanga)
>> Red Hat Enterprise Linux Server release 5.8 (Tikanga)
> [SNIP]
>> Red Hat Enterprise Linux release 8.4 (Ootpa)
>> Red Hat Enterprise Linux release 8.6 (Ootpa)
>>
>> Also, CentOs ...
>>
>> CentOS Linux release 7.9.2009 (Core)
>> CentOS Stream release 8
>>
>> /etc/os-release doesn't seem to exist prior to version 7, and CentOs
>> Stream dropped the decimal-point - but VERSION_ID is the easiest to
>> parse.
>
> Is /etc/redhat-release always just one line? (Similar files like
> /etc/lsb-release are several lines.)
>

Yes, it's always one line.

Re: how to capture only 7 or 8 in /etc/redhat-release

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From: pyt...@aol.com (Pyt T.)
Newsgroups: comp.unix.shell
Subject: Re: how to capture only 7 or 8 in /etc/redhat-release
Date: Wed, 7 Jun 2023 07:25:47 -0000 (UTC)
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by: Pyt T. - Wed, 7 Jun 2023 07:25 UTC

On Tue, 6 Jun 2023 11:50:53 +0100, Richard Harnden <richard.nospam@gmail.com> wrote:
> Red Hat Enterprise Linux Server release 5.6 (Tikanga)
> Red Hat Enterprise Linux Server release 5.8 (Tikanga)
> Red Hat Enterprise Linux Server release 5.11 (Tikanga)
> Red Hat Enterprise Linux Server release 6.4 (Santiago)
> Red Hat Enterprise Linux Server release 6.6 (Santiago)
> Red Hat Enterprise Linux Server release 6.7 (Santiago)
> Red Hat Enterprise Linux Server release 6.8 (Santiago)
> Red Hat Enterprise Linux Server release 6.9 (Santiago)
> Red Hat Enterprise Linux Server release 6.10 (Santiago)
> Red Hat Enterprise Linux Server release 7.4 (Maipo)
> Red Hat Enterprise Linux Server release 7.6 (Maipo)
> Red Hat Enterprise Linux Server release 7.7 (Maipo)
> Red Hat Enterprise Linux Server release 7.9 (Maipo)
> Red Hat Enterprise Linux release 8.1 (Ootpa)
> Red Hat Enterprise Linux release 8.3 (Ootpa)
> Red Hat Enterprise Linux release 8.4 (Ootpa)
> Red Hat Enterprise Linux release 8.6 (Ootpa)

If I parse this list through:
sed 's/.*release $[^(]*$(.*/\1/'

I get:
5.6
5.8
5.11
6.4
6.6
6.7
6.8
6.9
6.10
7.4
7.6
7.7
7.9
8.1
8.3
8.4
8.6

Re: how to capture only 7 or 8 in /etc/redhat-release

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From: pyt...@aol.com (Pyt T.)
Newsgroups: comp.unix.shell
Subject: Re: how to capture only 7 or 8 in /etc/redhat-release
Date: Wed, 7 Jun 2023 07:33:59 -0000 (UTC)
Organization: nederlandse stichting
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by: Pyt T. - Wed, 7 Jun 2023 07:33 UTC

On Wed, 7 Jun 2023 07:25:47 -0000 (UTC), Pyt T. <pyt_t@aol.com> wrote:
> On Tue, 6 Jun 2023 11:50:53 +0100, Richard Harnden <richard.nospam@gmail.com> wrote:
>> Red Hat Enterprise Linux Server release 5.6 (Tikanga)
>> Red Hat Enterprise Linux Server release 5.8 (Tikanga)
>> Red Hat Enterprise Linux Server release 5.11 (Tikanga)
>> Red Hat Enterprise Linux Server release 6.4 (Santiago)
>> Red Hat Enterprise Linux Server release 6.6 (Santiago)
>> Red Hat Enterprise Linux Server release 6.7 (Santiago)
>> Red Hat Enterprise Linux Server release 6.8 (Santiago)
>> Red Hat Enterprise Linux Server release 6.9 (Santiago)
>> Red Hat Enterprise Linux Server release 6.10 (Santiago)
>> Red Hat Enterprise Linux Server release 7.4 (Maipo)
>> Red Hat Enterprise Linux Server release 7.6 (Maipo)
>> Red Hat Enterprise Linux Server release 7.7 (Maipo)
>> Red Hat Enterprise Linux Server release 7.9 (Maipo)
>> Red Hat Enterprise Linux release 8.1 (Ootpa)
>> Red Hat Enterprise Linux release 8.3 (Ootpa)
>> Red Hat Enterprise Linux release 8.4 (Ootpa)
>> Red Hat Enterprise Linux release 8.6 (Ootpa)
>
> If I parse this list through:
> sed 's/.*release $[^(]*$(.*/\1/'
>
> I get:
> 5.6
> 5.8
> 5.11
> 6.4
> 6.6
> 6.7
> 6.8
> 6.9
> 6.10
> 7.4
> 7.6
> 7.7
> 7.9
> 8.1
> 8.3
> 8.4
> 8.6

Use:
sed 's/.*$[0-9]$\..*/\1/'

to get:
5 5
5 6
6 6
6 6
6 7
7 7
7 8
8 8
8

Staff meeting in the conference room in %d minutes.

devel / comp.unix.shell / Re: how to capture only 7 or 8 in /etc/redhat-release

Subject	Author
Re: how to capture only 7 or 8 in /etc/redhat-release	Keith Thompson
Re: how to capture only 7 or 8 in /etc/redhat-release	Richard Harnden
Re: how to capture only 7 or 8 in /etc/redhat-release	Keith Thompson
Re: how to capture only 7 or 8 in /etc/redhat-release	Richard Harnden
Re: how to capture only 7 or 8 in /etc/redhat-release	Pyt T.
Re: how to capture only 7 or 8 in /etc/redhat-release	Pyt T.