A Command to display a specific line??

pheardotcom · 10-28-2008, 10:54 PM

Hello,
i'm new to linux, and i'm also taking a course on it, so i need some help

the question is: The file 'threelines' contains 3 lines of text. Display the middle line on the screen. You are not allowed to use the 'more' command.

try using a combination of head and tail

thank you.

klearview · 10-28-2008, 11:22 PM

Hi,

A few ways to do this. Here is one:

tail -2 <file> | line

Another way: number the lines with 'nl <file>' and use grep (nl <file> | grep -w 2).

klearview · 10-28-2008, 11:24 PM

With head and tail only:

tail -2 <file> | head -1

pheardotcom · 10-28-2008, 11:30 PM

that worked perfectly thank you

nishamathew1980 · 11-04-2008, 02:08 PM

I loved the tail and head solution. @klearview - RESPECT!

Linux Archive

lutusp · 11-02-2009, 07:56 PM

Quote:

Originally Posted by deandre_7

This is the question.

Search the file 'data' for all of the lines that contain the pattern 'uli101'and put those lines in the file 'matches'.

Any help would be appreciated. Thanks

You have already posted this question in another thread. And you have gotten a reply.

pixellany · 11-02-2009, 09:29 PM

Quote:

Originally Posted by lutusp

You have already posted this question in another thread. And you have gotten a reply.

Actually, this one came first---so deleted this one and will now re-open the other thread.

pheardotcom · 11-02-2009, 11:15 PM

Got is already in past-tense there is no need for you to add the 'ten' at the end.