To extract a particular line(given by line number) from a file

To extract a particular line(given by line number) from a file

[Sadanapalli, Pradeep Kumar (MED, TCS)]

Hi Friends,
I am running RedHat Linux 8.0. I want to do the following .

I have a file with several lines of data in it. I want to extract a line
I want from the file
and display the whole line of data. 'grep' searches only for patterns,as
I believe. I don't want to search for patterns. 
I just directly want to extract the data by line numbers.For example, I
want to get the data in line number 5.

How can I do this? Is there any command to do this? Please help me. I
hope I am clear.

Thanks,
Pradeep

Re: To extract a particular line(given by line number) from a file

[Tim Walberg]

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tail +5 somefile | head -1

or

cat -n somefile | grep '  *5 '

or

sed -ne 5p somefile

or

...


On 03/28/2003 12:35 -0600, Sadanapalli, Pradeep Kumar (MED, TCS) wrote:
>>	Hi Friends,
>>	I am running RedHat Linux 8.0. I want to do the following .
>>	
>>	I have a file with several lines of data in it. I want to extract a line
>>	I want from the file
>>	and display the whole line of data. 'grep' searches only for patterns,as
>>	I believe. I don't want to search for patterns. 
>>	I just directly want to extract the data by line numbers.For example, I
>>	want to get the data in line number 5.
>>	
>>	How can I do this? Is there any command to do this? Please help me. I
>>	hope I am clear.
>>	
>>	Thanks,
>>	Pradeep
>>	-
>>	To unsubscribe from this list: send the line "unsubscribe linux-admin" in
>>	the body of a message to majordomo@vger.kernel.org
>>	More majordomo info at  http://vger.kernel.org/majordomo-info.html
End of included message



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Re: To extract a particular line(given by line number) from a file

[jbrown105]

Try looking at 'man head' or 'man tail'

Or ... why not just write a small Python or Perl app to do it for you?

jbrown

You said:
Hi Friends,
I am running RedHat Linux 8.0. I want to do the following .

I have a file with several lines of data in it. I want to extract a line
I want from the file
and display the whole line of data. 'grep' searches only for patterns,as
I believe. I don't want to search for patterns.
I just directly want to extract the data by line numbers.For example, I
want to get the data in line number 5.

How can I do this? Is there any command to do this? Please help me. I
hope I am clear.

Thanks,
Pradeep


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Re: To extract a particular line(given by line number) from a file

[Ashish V. Orpe]

awk 'NR == 5 {print $0}'  somefile     :  this will extract the entire
fifth line

awk 'NR == 3, NR == 5 {print $0}'  somefile     :  this will extract the
entire lines 3 to 5

awk 'NR == 3, NR == 5 {print $1,$2}'  somefile     :  this will extract
the first and the second field from

lines 3 to 5