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Top Forums Shell Programming and Scripting Copy lines from x to y to another file Post 303018104 by omega3 on Tuesday 29th of May 2018 08:25:16 AM
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'

 

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HEAD(1) 								FSF								   HEAD(1)

NAME
head - output the first part of files SYNOPSIS
head [OPTION]... [FILE]... DESCRIPTION
Print first 10 lines of each FILE to standard output. With more than one FILE, precede each with a header giving the file name. With no FILE, or when FILE is -, read standard input. Mandatory arguments to long options are mandatory for short options too. -c, --bytes=SIZE print first SIZE bytes -n, --lines=NUMBER print first NUMBER lines instead of first 10 -q, --quiet, --silent never print headers giving file names -v, --verbose always print headers giving file names --help display this help and exit --version output version information and exit SIZE may have a multiplier suffix: b for 512, k for 1K, m for 1 Meg. AUTHOR
Written by David MacKenzie. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for head is maintained as a Texinfo manual. If the info and head programs are properly installed at your site, the command info head should give you access to the complete manual. head (coreutils) 4.5.3 February 2003 HEAD(1)
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