What is the command to print out some certain lines of a text file?

Hi,
I have an impression some unix command can print some lines of a
file, for example, I want to see on my console the lines between 500
and 520, but I can not remember how to do that.

Any pointer?

Thanks.

Re: What is the command to print out some certain lines of a text file?

On 2007-10-25, linq936 wrote:
> I have an impression some unix command can print some lines of a
> file, for example, I want to see on my console the lines between 500
> and 520, but I can not remember how to do that.

sed -n '500,520p' FILENAME

If it's a very large file, you will want to exit after the last
line:

sed -n -e '500,520p' -e '520q' FILENAME

--
Chris F.A. Johnson, author
Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
===== My code in this post, if any, assumes the POSIX locale
===== and is released under the GNU General Public Licence

Re: What is the command to print out some certain lines of a text file?

linq936 writes:

> Hi,
> I have an impression some unix command can print some lines of a
> file, for example, I want to see on my console the lines between 500
> and 520, but I can not remember how to do that.

sed -n '500,520p'
or
awk 'NR>=500 && NR<=520'

Re: What is the command to print out some certain lines of a text file?

On Oct 25, 7:37 am, Maxwell Lol wrote:
> linq936 writes:
> > Hi,
> > I have an impression some unix command can print some lines of a
> > file, for example, I want to see on my console the lines between 500
> > and 520, but I can not remember how to do that.
>
> sed -n '500,520p' >
> or
> awk 'NR>=500 && NR<=520'
In case you also need the line numbers also to be printed you can use:

sed -n '500,520{=;p}' | sed 'N;s/\n/:\t/'

Re: What is the command to print out some certain lines of a text file?

2007-10-24, 22:14(-04), Chris F.A. Johnson:
> On 2007-10-25, linq936 wrote:
>> I have an impression some unix command can print some lines of a
>> file, for example, I want to see on my console the lines between 500
>> and 520, but I can not remember how to do that.
>
> sed -n '500,520p' FILENAME
>
> If it's a very large file, you will want to exit after the last
> line:
>
> sed -n -e '500,520p' -e '520q' FILENAME

or

sed '500,$!d;520q' < FILENAME

or

< FILENAME head -n 520 | tail -n 21

or

awk 'NR >= 500; NR >= 520 {exit}' < FILENAME

--
Stéphane

Re: What is the command to print out some certain lines of a text file?

In article <868x5rzzpy.fsf@localhost.localdomain>,
Maxwell Lol wrote:
>linq936 writes:
>
>> Hi,
>> I have an impression some unix command can print some lines of a
>> file, for example, I want to see on my console the lines between 500
>> and 520, but I can not remember how to do that.
>
> sed -n '500,520p' >
>or
> awk 'NR>=500 && NR<=520'
ITYM:

awk 'NR==500,NR==520' file

Re: What is the command to print out some certain lines of a text file?

On Oct 25, 4:08 pm, gaze...@xmission.xmission.com (Kenny McCormack)
wrote:
> In article <868x5rzzpy....@localhost.localdomain>,
> Maxwell Lol wrote:
>
> >linq936 writes:
>
> >> Hi,
> >> I have an impression some unix command can print some lines of a
> >> file, for example, I want to see on my console the lines between 500
> >> and 520, but I can not remember how to do that.
>
> > sed -n '500,520p' >
> >or
> > awk 'NR>=500 && NR<=520' >
> ITYM:
>
> awk 'NR==500,NR==520' file

using perl:

perl -nle 'print if 500..520'