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Copy lines from x to y to another file

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# 1  
Old 05-29-2018
Copy lines from x to y to another file
OS : RHEL 7.2
Shell : bash

I have a file which has lines like below

I want to copy from 2nd line to the 6th line and copy(redirect) those lines to another file.


Code:
$ cat patterns.txt 
hello world 
hello asia 
hello europe 
hello africa 
hello america 
hello antartica 
hello australia 
some more hellos

So, the expected output will be like below.
Any way I could achieve this ?

Code:
$ cat patterns2.txt 
hello asia 
hello europe 
hello africa 
hello america 
hello antartica 
hello australia

# 2  
Old 05-29-2018
Did you consider the head and tail *nix commands?
This User Gave Thanks to RudiC For This Post:
omega3
# 3  
Old 05-29-2018
Thanks for the tip Rudic

I am trying to print line 2 to 7th line using head command. But, I get the below errors. Can you guide me on the syntax.

Code:
$ head -n 2,7 patterns.txt
head: invalid number of lines: ‘2,7'
$ 
$ 
$ head -n 2 7 patterns.txt
head: cannot open '7' for reading: No such file or directory
==> patterns.txt <==
hello world
hello asia
$ 
$ head -n 2-7 patterns.txt
head: invalid number of lines: ‘2-7'

# 4  
Old 05-29-2018
Try

Code:
head -7 file | tail +2
hello asia 
hello europe 
hello africa 
hello america 
hello antartica 
hello australia

This User Gave Thanks to RudiC For This Post:
omega3
# 5  
Old 05-30-2018
Thanks Rudic

Your solution didn't work for me. Maybe bcoz the head and tail commands I use is GNU.

Code:
$ cat patterns.txt
hello world
hello asia
hello europe
hello africa
hello america
hello antartica
hello australia
some more hellos
$ 
$ head -7 patterns.txt
hello world
hello asia
hello europe
hello africa
hello america
hello antartica
hello australia
$ 
$ 
$ 
$ head -7 patterns.txt | tail +2
tail: cannot open '+2' for reading: No such file or directory
$ 
$ 
$ head -7 patterns.txt | tail 2
tail: cannot open '2' for reading: No such file or directory
$

BTW Is there sed/awk way to do this ?
# 6  
Old 05-30-2018
It frequently helps to consult the man pages. man tail:
Quote:
-n, --lines=[+]NUM
output the last NUM lines, instead of the last 10; or use -n +NUM to output starting with line NUM
This User Gave Thanks to RudiC For This Post:
omega3
# 7  
Old 05-30-2018
You can also use awk:

Code:
awk "NR >= $from_line && NR <= $to_line {print}" $filename

This User Gave Thanks to rovf For This Post:
omega3
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