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Full Discussion: stuck and confused
Top Forums UNIX for Dummies Questions & Answers stuck and confused Post 302135176 by cfajohnson on Thursday 6th of September 2007 03:11:03 PM
Old 09-06-2007
Quote:
Originally Posted by iago
What do you want to insert?
I want to insert the first argument, which will be a line of text

Where do you want to insert it?
In the middle of the second argument which is a text file

I assume that you do not want it in the middle of the second argument, but in the middle of the file pointed to by the second argument.

If that is the case, you need to find out how many lines are in the file, use head to read that number of lines; insert the text; use tail to get the rest of the file, or use awk.

Code:
lines=$( wc -l < "$2" )
middle=$(( $lines / 2 ))

awk -v mid=$middle -v text="$1" '
   NR == mid { print text }
             { print }' "$2" > tempfile

 

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Mail::Message::Construct::Text(3pm)			User Contributed Perl Documentation		       Mail::Message::Construct::Text(3pm)

NAME
Mail::Message::Construct::Text - capture a Mail::Message as text SYNOPSIS
my $text = $msg->string; my $text = "$msg"; # via overload my @text = $msg->lines; my @text = @$lines; # via overload my $fh = $msg->file; my $line = <$fh>; $msg->printStructure; DESCRIPTION
Complex functionality on Mail::Message objects is implemented in different files which are autoloaded. This file implements the functionality related to creating message replies. METHODS
The whole message as text $obj->file() Returns the message as file-handle. $obj->lines() Returns the whole message as set of lines. In LIST context, copies of the lines are returned. In SCALAR context, a reference to an array of lines is returned. $obj->printStructure([FILEHANDLE|undef],[INDENT]) Print the structure of a message to the specified FILEHANDLE or the selected filehandle. When explicitly "undef" is specified as handle, then the output will be returned as string. The message's subject and the types of all composing parts are displayed. INDENT specifies the initial indentation string: it is added in front of each line. The INDENT must contain at least one white-space. example: my $msg = ...; $msg->printStructure(*OUTPUT); $msg->printStructure; my $struct = $msg->printStructure(undef); # Possible output for one message: multipart/mixed: forwarded message from Pietje Puk (1550 bytes) text/plain (164 bytes) message/rfc822 (1043 bytes) multipart/alternative: A multipart alternative (942 bytes) text/plain (148 bytes, deleted) text/html (358 bytes) $obj->string() Returns the whole message as string. Flags SEE ALSO
This module is part of Mail-Box distribution version 2.105, built on May 07, 2012. Website: http://perl.overmeer.net/mailbox/ LICENSE
Copyrights 2001-2012 by [Mark Overmeer]. For other contributors see ChangeLog. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See http://www.perl.com/perl/misc/Artistic.html perl v5.14.2 2012-05-07 Mail::Message::Construct::Text(3pm)
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