On Mon, 12 Feb 2024 17:21:32 +0100, db wrote:

I have a script that adds new entries to a bib file.
When it has done its job, I would like to display
the first few lines or at least the first page of
the result. By hand, I would use more (or less)
and terminate with q at the end of the first page.
can I do this from a script? If yes, how?

head -n 10 <file/name/of/interest>

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Use head.

Best regards,
Daniel


On Mon, 12 Feb 2024, db wrote:

I have a script that adds new entries to a bib file.
When it has done its job, I would like to display
the first few lines or at least the first page of
the result. By hand, I would use more (or less)
and terminate with q at the end of the first page.
can I do this from a script? If yes, how?

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db <dieterhansbr...@gmail.com> [d]:

I would like to display the first few lines or at
least the first page of the result.

If 'sed' is not your cup of tea, try 'awk' instead:

< your_file.bib awk NR\<11 # display the first 10 records (lines)

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db <dieterhansbr...@gmail.com> [d]:

I would like to display the first few lines or at
least the first page of the result.

Or, if you prefer to display the last ten lines try this:

< your_file.bib sed -e ':0;$q;N;11,$D;b0' # notice it's "11" rather than "10"

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db <dieterhansbr...@gmail.com> [d]:

I would like to display the first few lines or at
least the first page of the result.

To display the first ten lines try this (which is a bit shorter
than the equivalent head command):

< your_file.bib sed 10q # after printing the first 10 lines, quit

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On Tue, 13 Feb 2024, Fritz Wuehler wrote:

db <dieterhansbr...@gmail.com> [d]:

I would like to display the first few lines or at
least the first page of the result.

To display the first ten lines try this (which is a bit shorter
than the equivalent head command):

< your_file.bib sed 10q # after printing the first 10 lines, quit

This is art!

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Fritz Wuehler <fritz@spamexpire-202402.rodent.frell.theremailer.net>
wrote:

db <dieterhansbr...@gmail.com> [d]:

I would like to display the first few lines or at
least the first page of the result.

Or, if you prefer to display the last ten lines try this:

< your_file.bib sed -e ':0;$q;N;11,$D;b0' # notice it's "11" rather than "10"

Using tail is not complicated enough?

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---------------------------------------------------------------------------- Marc Haber | " Questions are the | Mailadresse im Header Rhein-Neckar, DE | Beginning of Wisdom " |
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db <dieterhansbr...@gmail.com> [d]:

Why didn't I know about this command? And how many others
are there that I should know?

Take your own sweet time with some intoductory material, like

Introduction to the Linux Command Shell For Beginners
(by Victor Gedris)
https://www.cgs.iitk.ac.in/user/hk/csd101/2021/shellIntro.pdf

The Linux Command Handbook - Learn Linux Commands for Beginners
(by Flavio Copes)
https://www.freecodecamp.org/news/the-linux-commands-handbook

and build from there.

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