Am 06/03/2024 um 14:46 schrieb Ottavio Caruso:

I have a file that looks like this:

$ head newsrc-news.eternal-september.org-test
nl.newsgroups.announce: 1-1329
free.uk.amateur-radio: 1-15497
uk.media.radio.misc: 1-456
uk.radio.amateur: 1-377688,377690,377692,377694-377697,377699,377701-377704 uk.radio.amateur.moderated: 1-6432
uk.legal.moderated: 1-378428
comp.security.ssh: 1-3221
alt.comp.software.newsreaders: 1-481
uk.net.news.moderation: 1-64428
free.uk.legal: 1-275

I want to convert all the last part of the lines from 1-whatever to 1-1

I have tried:

$ sed -i 's/"1-*"/'1-1'/g'  newsrc-news.eternal-september.org-test

and

$ sed -i 's/"1-*"/"1-1"/g'  newsrc-news.eternal-september.org-test

$ sed -i 's/"1-*"/1-1/g'  newsrc-news.eternal-september.org-test

but none of them does the job.

If I do:

$ sed -i 's/1-*/"1-1"/g'  newsrc-news.eternal-september.org-test

then:

$ head  newsrc-news.eternal-september.org-test
nl.newsgroups.announce: "1-1""1-1""1-1""1-1"329
free.uk.amateur-radio: "1-1""1-1""1-1""1-1"5497
uk.media.radio.misc: "1-1""1-1"456
uk.radio.amateur: "1-1""1-1"377688,377690,377692,377694-377697,377699,37770"1-1""1-1"377704 uk.radio.amateur.moderated: "1-1""1-1"6432
uk.legal.moderated: "1-1""1-1"378428
comp.security.ssh: "1-1""1-1"322"1-1""1-1"
alt.comp.software.newsreaders: "1-1""1-1"48"1-1""1-1"
uk.net.news.moderation: "1-1""1-1"64428
free.uk.legal: "1-1""1-1"275

which is not what I want.

Any help will be appreciated.

For posterity, Grant Taylor on alt.comp.software.thunderbird suggested
this and worked:


$ awk '{print $1, "1-1"}' newsrc-news.eternal-september.org-test > newsrc-news.eternal-september.org


Sorry for the noise. I never got to learn awk properly.

--
Ottavio Caruso

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

I have a file that looks like this:

$ head newsrc-news.eternal-september.org-test
nl.newsgroups.announce: 1-1329
free.uk.amateur-radio: 1-15497
uk.media.radio.misc: 1-456
uk.radio.amateur: 1-377688,377690,377692,377694-377697,377699,377701-377704 uk.radio.amateur.moderated: 1-6432
uk.legal.moderated: 1-378428
comp.security.ssh: 1-3221
alt.comp.software.newsreaders: 1-481
uk.net.news.moderation: 1-64428
free.uk.legal: 1-275

I want to convert all the last part of the lines from 1-whatever to 1-1

I have tried:

$ sed -i 's/"1-*"/'1-1'/g' newsrc-news.eternal-september.org-test

and

$ sed -i 's/"1-*"/"1-1"/g' newsrc-news.eternal-september.org-test

$ sed -i 's/"1-*"/1-1/g' newsrc-news.eternal-september.org-test

but none of them does the job.

If I do:

$ sed -i 's/1-*/"1-1"/g' newsrc-news.eternal-september.org-test

then:

$ head newsrc-news.eternal-september.org-test
nl.newsgroups.announce: "1-1""1-1""1-1""1-1"329
free.uk.amateur-radio: "1-1""1-1""1-1""1-1"5497
uk.media.radio.misc: "1-1""1-1"456
uk.radio.amateur: "1-1""1-1"377688,377690,377692,377694-377697,377699,37770"1-1""1-1"377704 uk.radio.amateur.moderated: "1-1""1-1"6432
uk.legal.moderated: "1-1""1-1"378428
comp.security.ssh: "1-1""1-1"322"1-1""1-1"
alt.comp.software.newsreaders: "1-1""1-1"48"1-1""1-1"
uk.net.news.moderation: "1-1""1-1"64428
free.uk.legal: "1-1""1-1"275


which is not what I want.

Any help will be appreciated.

--
Ottavio Caruso

--- SoupGate-Win32 v1.05
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In article <us9vka$fepq$[email protected]>,
Ottavio Caruso <[email protected]> wrote:

I have a file that looks like this:

$ head newsrc-news.eternal-september.org-test
nl.newsgroups.announce: 1-1329
free.uk.amateur-radio: 1-15497
uk.media.radio.misc: 1-456
uk.radio.amateur: 1-377688,377690,377692,377694-377697,377699,377701-377704 >uk.radio.amateur.moderated: 1-6432
uk.legal.moderated: 1-378428
comp.security.ssh: 1-3221
alt.comp.software.newsreaders: 1-481
uk.net.news.moderation: 1-64428
free.uk.legal: 1-275

I want to convert all the last part of the lines from 1-whatever to 1-1

Two comments:
1) "sed" is almost never the right answer, regardless of what the
question is. AWK can do everything (with maybe one or two obscure
exceptions) that sed can do, and is a lot easier to use.

2) Why not just:

awk 'sub(/1-[0-9]+$/,"1-1");{ print "Line:",$0,"does not fit the expected pattern." > "/dev/stderr" }' yourfile

--
Many (most?) Trump voters voted for him because they thought if they
supported Trump enough, they'd get to *be* Trump.

Similarly, Trump believes that if *he* praises Putin enough, he'll get to *be* Putin.

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Am 06/03/2024 um 14:59 schrieb Kenny McCormack:

In article <us9vka$fepq$[email protected]>,
Ottavio Caruso <[email protected]> wrote:

I have a file that looks like this:

$ head newsrc-news.eternal-september.org-test
nl.newsgroups.announce: 1-1329
free.uk.amateur-radio: 1-15497
uk.media.radio.misc: 1-456
uk.radio.amateur: 1-377688,377690,377692,377694-377697,377699,377701-377704 >> uk.radio.amateur.moderated: 1-6432
uk.legal.moderated: 1-378428
comp.security.ssh: 1-3221
alt.comp.software.newsreaders: 1-481
uk.net.news.moderation: 1-64428
free.uk.legal: 1-275

I want to convert all the last part of the lines from 1-whatever to 1-1

Two comments:
1) "sed" is almost never the right answer, regardless of what the
question is. AWK can do everything (with maybe one or two obscure
exceptions) that sed can do, and is a lot easier to use.

2) Why not just:

awk 'sub(/1-[0-9]+$/,"1-1");{ print "Line:",$0,"does not fit the expected pattern." > "/dev/stderr" }' yourfile

I actually got myself in trouble because I realised this is not what I
really wanted, so I just made a lot of noise for nuffink.

--
Ottavio Caruso

--- SoupGate-Win32 v1.05
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In article <usa1ei$hr$[email protected]>,
Grant Taylor <[email protected]> wrote:

On 3/6/24 08:46, Ottavio Caruso wrote:

Any help will be appreciated.

Copying my sed version reply from alt.comp.software.thunderbird here for >completeness:

mv newsrc newsrc.backup
sed 's/:.*/: 1-1/' newsrc.backup > newsrc

sed -i 's/:.*/: 1-1/' newsrc

--
Most Southerners interest in, knowledge of, and participation in politics begins with
and ends with: Screw the blacks. If a guy is onboard with that, he's our guy!

Get them back in chains where they belong!

--- SoupGate-Win32 v1.05
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On 3/6/24 08:46, Ottavio Caruso wrote:

Any help will be appreciated.

Copying my sed version reply from alt.comp.software.thunderbird here for completeness:

mv newsrc newsrc.backup
sed 's/:.*/: 1-1/' newsrc.backup > newsrc



--
Grant. . . .

--- SoupGate-Win32 v1.05
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On 06.03.2024 15:53, Ottavio Caruso wrote:

Am 06/03/2024 um 14:46 schrieb Ottavio Caruso:

I have a file that looks like this:

$ head newsrc-news.eternal-september.org-test
nl.newsgroups.announce: 1-1329
free.uk.amateur-radio: 1-15497
uk.media.radio.misc: 1-456
uk.radio.amateur:
1-377688,377690,377692,377694-377697,377699,377701-377704
uk.radio.amateur.moderated: 1-6432
uk.legal.moderated: 1-378428
comp.security.ssh: 1-3221
alt.comp.software.newsreaders: 1-481
uk.net.news.moderation: 1-64428
free.uk.legal: 1-275

[...]

Any help will be appreciated.

For posterity, Grant Taylor on alt.comp.software.thunderbird suggested
this and worked:

$ awk '{print $1, "1-1"}' newsrc-news.eternal-september.org-test > newsrc-news.eternal-september.org

In this specific case of regular data you can simplify that to

awk '$2="1-1"' sourcefile > targetfile


Janis

--- SoupGate-Win32 v1.05
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Ottavio Caruso <[email protected]> writes:

[...]

Sorry for the noise. I never got to learn awk properly.

The book

The AWK Programming Language
Alfred V. Aho, Brian W. Kernighan, Peter J. Weinberger
Addison-Wesley Publishing Company, 1988
ISBN 0-201-07981-X

is one of the most interesting books on programming ever written.
(Along with SICP, HtDP and others.)

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On 06.03.2024 22:50, Keith Thompson wrote:

Julieta Shem <[email protected]> writes:

The book

The AWK Programming Language
Alfred V. Aho, Brian W. Kernighan, Peter J. Weinberger
Addison-Wesley Publishing Company, 1988
ISBN 0-201-07981-X

is one of the most interesting books on programming ever written.

The second edition was published in 2024.

This is a very notable fact given that the first edition was from 1988!

Janis

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On 07.03.2024 02:34, Grant Taylor wrote:

On 3/6/24 13:40, Janis Papanagnou wrote:

In this specific case of regular data you can simplify that to

awk '$2="1-1"' sourcefile > targetfile

Interesting.

I don't know that I've ever seen (re)defining a field value as part of
the script.

Assigning to a field is possible but you should be aware that the
fields in $0 will become reorganized then... (mind the blank spaces)

awk '$2="NEW"' <<EOT
abc defg ghi
jk lm no pq
EOT

Output:
abc NEW ghi
jk NEW no pq

You see that there's then (per default) only single delimiting
spaces left. You can change that by delimiter OFS, e.g. OFS="\t"
would place TABs in between (but would not preserve the original
spacing).

If you'd want to retain the previous spaces it would require some
other (not so trivial) handling.

Janis

[...]

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On 3/6/24 09:20, Kenny McCormack wrote:

sed -i 's/:.*/: 1-1/' newsrc

Agreed /if/ the sed that the OP is using supports `-i`.

My day job has me working across multiple platforms and try to do things
more consistently across the platforms.



--
Grant. . . .

--- SoupGate-Win32 v1.05
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On 3/6/24 13:40, Janis Papanagnou wrote:

In this specific case of regular data you can simplify that to

awk '$2="1-1"' sourcefile > targetfile

Interesting.

I don't know that I've ever seen (re)defining a field value as part of
the script.

I'll have to file that one away.

Today I learned.

Thank you.



--
Grant. . . .

--- SoupGate-Win32 v1.05
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Am 06/03/2024 um 21:26 schrieb Julieta Shem:

Ottavio Caruso <[email protected]> writes:

[...]

Sorry for the noise. I never got to learn awk properly.

The book

The AWK Programming Language
Alfred V. Aho, Brian W. Kernighan, Peter J. Weinberger
Addison-Wesley Publishing Company, 1988
ISBN 0-201-07981-X

is one of the most interesting books on programming ever written.
(Along with SICP, HtDP and others.)

Smartass.

--
Ottavio Caruso

--- SoupGate-Win32 v1.05
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Am 06/03/2024 um 21:50 schrieb Keith Thompson:

Julieta Shem <[email protected]> writes:

Ottavio Caruso <[email protected]> writes:

[...]

Sorry for the noise. I never got to learn awk properly.

The book

The AWK Programming Language
Alfred V. Aho, Brian W. Kernighan, Peter J. Weinberger
Addison-Wesley Publishing Company, 1988
ISBN 0-201-07981-X

is one of the most interesting books on programming ever written.
(Along with SICP, HtDP and others.)

The second edition was published in 2024.

SICP is "Structure and Interpretation of Computer Programs" by Harold
Abelson and Gerald Jay Sussman with Julie Sussman.

HtDP is "How to Design Programs" by Matthias Felleisen, Robert Bruce
Findler, Matthew Flatt, and Shriram Krishnamurthi.

For fucks sake, I know what awk is. I just never bothered learning it.

Just because you see a foreign name, you all expect we live in a cave.

--
Ottavio Caruso

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

Am 07/03/2024 um 01:32 schrieb Grant Taylor:

On 3/6/24 09:20, Kenny McCormack wrote:

sed -i 's/:.*/: 1-1/' newsrc

Agreed /if/ the sed that the OP is using supports `-i`.

My day job has me working across multiple platforms and try to do things
more consistently across the platforms.

Thanks Grant. I am unsubscribing from this NG, so you won't catch me here.

--
Ottavio Caruso

--- SoupGate-Win32 v1.05
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In article <usc2je$vsku$[email protected]>,
Ottavio Caruso <[email protected]> wrote:
...

For fucks sake, I know what awk is. I just never bothered learning it.

You were responding to Leader Keith. Yes, Keith is an asshole, but he's
our asshole and we love him for it.

Just because you see a foreign name, you all expect we live in a cave.

Do you even have electricity where you live?

--
Just like Donald Trump today, Jesus Christ had a Messiah complex.

And, in fact, the similarities between the two figures are quite striking.
For example, both have a ragtag band of followers, whose faith cannot be shaken.

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On 3/6/24 19:54, Janis Papanagnou wrote:

You see that there's then (per default) only single delimiting spaces
left.

I think I see what you're saying. I also feel like I must be missing
something obvious, because what you're describing is what I would expect
awk to do.

You can change that by delimiter OFS, e.g. OFS="\t" would place TABs
in between (but would not preserve the original spacing).

I've dabbled with OFS, and IFS, a few times as needed. But most of the
time I don't need to.

If you'd want to retain the previous spaces it would require some other
(not so trivial) handling.

I can't think of a use case where I would want that and choose to use
awk. -- I'm sure such use cases exist, I'm just ignorant of them.



--
Grant. . . .

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

On Thu, 07 Mar 2024 14:32:58 -0800, Keith Thompson <[email protected]> wrote in <[email protected]>:

Ottavio Caruso <[email protected]> writes:

Am 06/03/2024 um 21:50 schrieb Keith Thompson:

Julieta Shem <[email protected]> writes:

Ottavio Caruso <[email protected]> writes:

[...]

Sorry for the noise. I never got to learn awk properly.

The book

The AWK Programming Language Alfred V. Aho, Brian W. Kernighan,
Peter J. Weinberger Addison-Wesley Publishing Company, 1988 ISBN
0-201-07981-X

is one of the most interesting books on programming ever written.
(Along with SICP, HtDP and others.)

The second edition was published in 2024.
SICP is "Structure and Interpretation of Computer Programs" by Harold
Abelson and Gerald Jay Sussman with Julie Sussman.
HtDP is "How to Design Programs" by Matthias Felleisen, Robert Bruce
Findler, Matthew Flatt, and Shriram Krishnamurthi.

For fucks sake, I know what awk is. I just never bothered learning it.

Just because you see a foreign name, you all expect we live in a cave.

What on Earth are you talking about? I didn't even notice your name.
I just expanded on what Julieta Shem wrote, and you somehow managed to
take offense. (I didn't know what HtDP means; I had to look it up, and
then I shared that information with the group.)

Someone having a bad day?

Anyway, thank you for the heads-up that a new edition
of the AWK book was out. I bought it on Kindle -- would
have bought hardcopy, but Amazon seems to only have it
in paperback (and Kindle).

(Coincidentally, I have a question about shell providers,
but will post that separately.)

--
-v

--- SoupGate-Win32 v1.05
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In article <usdufk$19m29$[email protected]>, vallor <[email protected]> wrote: ...

Someone having a bad day?

Yes, but with Keith, every day is a bad day.

You get used to it.

--
'Islamaphobia' is a term created by fascists and used by cowards to manipulate morons.

- Author unknown, quoted by Sam Harris -

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Keith Thompson <[email protected]> writes:

Ottavio Caruso <[email protected]> writes:

Am 06/03/2024 um 21:50 schrieb Keith Thompson:

Julieta Shem <[email protected]> writes:

Ottavio Caruso <[email protected]> writes:

[...]

Sorry for the noise. I never got to learn awk properly.

The book

The AWK Programming Language
Alfred V. Aho, Brian W. Kernighan, Peter J. Weinberger
Addison-Wesley Publishing Company, 1988
ISBN 0-201-07981-X

is one of the most interesting books on programming ever written.
(Along with SICP, HtDP and others.)

The second edition was published in 2024.
SICP is "Structure and Interpretation of Computer Programs" by
Harold
Abelson and Gerald Jay Sussman with Julie Sussman.
HtDP is "How to Design Programs" by Matthias Felleisen, Robert Bruce
Findler, Matthew Flatt, and Shriram Krishnamurthi.

For fucks sake, I know what awk is. I just never bothered learning it.

Just because you see a foreign name, you all expect we live in a cave.

What on Earth are you talking about? I didn't even notice your name.
I just expanded on what Julieta Shem wrote, and you somehow managed
to take offense. (I didn't know what HtDP means; I had to look it
up, and then I shared that information with the group.)

He doesn't know how to use NNTP. Newbies, you know.

--- SoupGate-Win32 v1.05
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On Wed, 6 Mar 2024 14:53:51 +0000, Ottavio Caruso wrote:

Sorry for the noise. I never got to learn awk properly.

I never bothered, because Perl does everything that Awk does, just as concisely, and more besides.

--- SoupGate-Win32 v1.05
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