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Top Forums Shell Programming and Scripting Yet another bash arrays question Post 302355729 by TuxSax on Wednesday 23rd of September 2009 02:08:39 PM
Old 09-23-2009
Question Yet another bash arrays question

Hi all,
I have a file that contains many lines, but only a few are of my interest, so I'm cutting it with grep + awk, and the result I get is for example
Code:
line 0
line 1
line 2
line 3
line n

Now I want to store each line in an array "cell" so I can use it later calling to
${array[0]}, ${array[1]}, etc.
When I tried it doing
Code:
array[$count]=$(grep line file.txt | awk -F \" '{print $2}')

and then
Code:
echo ${array[@]}

it gives me
Code:
line 0 line 1 line 3 line n

but doing
Code:
echo ${#array[@]

shows that all I have is a single component, so I can't use each value
What am I doing wrong?
Thanks in advance
 

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TAP::Parser::YAMLish::Writer(3pm)			 Perl Programmers Reference Guide			 TAP::Parser::YAMLish::Writer(3pm)

NAME
TAP::Parser::YAMLish::Writer - Write YAMLish data VERSION
Version 3.17 SYNOPSIS
use TAP::Parser::YAMLish::Writer; my $data = { one => 1, two => 2, three => [ 1, 2, 3 ], }; my $yw = TAP::Parser::YAMLish::Writer->new; # Write to an array... $yw->write( $data, @some_array ); # ...an open file handle... $yw->write( $data, $some_file_handle ); # ...a string ... $yw->write( $data, $some_string ); # ...or a closure $yw->write( $data, sub { my $line = shift; print "$line "; } ); DESCRIPTION
Encodes a scalar, hash reference or array reference as YAMLish. METHODS
Class Methods "new" my $writer = TAP::Parser::YAMLish::Writer->new; The constructor "new" creates and returns an empty "TAP::Parser::YAMLish::Writer" object. Instance Methods "write" $writer->write($obj, $output ); Encode a scalar, hash reference or array reference as YAML. my $writer = sub { my $line = shift; print SOMEFILE "$line "; }; my $data = { one => 1, two => 2, three => [ 1, 2, 3 ], }; my $yw = TAP::Parser::YAMLish::Writer->new; $yw->write( $data, $writer ); The $output argument may be: o a reference to a scalar to append YAML to o the handle of an open file o a reference to an array into which YAML will be pushed o a code reference If you supply a code reference the subroutine will be called once for each line of output with the line as its only argument. Passed lines will have no trailing newline. AUTHOR
Andy Armstrong, <andy@hexten.net> SEE ALSO
YAML::Tiny, YAML, YAML::Syck, Config::Tiny, CSS::Tiny, <http://use.perl.org/~Alias/journal/29427> COPYRIGHT
Copyright 2007-2008 Andy Armstrong. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of the license can be found in the LICENSE file included with this module. perl v5.12.1 2010-04-26 TAP::Parser::YAMLish::Writer(3pm)
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