Re^3: opening many files

@ARGV = glob 'datafile*';

open my $OUTPUT, '>', 'output_file' or die "Cannot open 'output_file' 
+because: $!";

my %data;
while ( <> ) {
    next unless /^(.+) (\S+)$/;
    push @{ $data{ $1 } }, $2;
    }

for my $key ( sort keys %data ) {
    print join ' ', $key, @{ $data{ $key } }, scalar @{ $data{ $key } 
+}, "columns\n";
    }
[download]

Comment on Re^3: opening many files Download Code

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Re^4: opening many files by wanttoprogram (Novice) on Feb 28, 2012 at 04:44 UTC
thank you. the code is working fine. could you please help me understand the code. i am a beginner in perl and had hard time understanding the hi-fi code. also could you please explain how sort is working in your code. what changes do i have to make to code to get all the data with out any sorting. thank you.	[reply]
Re^5: opening many files by Anonymous Monk on Feb 28, 2012 at 05:08 UTC
understanding the hi-fi code What code are you calling the hi-fi code?	[reply]
Re^6: opening many files by wanttoprogram (Novice) on Feb 28, 2012 at 16:35 UTC
`@ARGV = glob 'datafile*'; open my $OUTPUT, '>', 'output_file' or die "Cannot open 'output_file' +because: $!"; my %data; while ( <> ) { next unless /^(.+) (\S+)$/; push @{ $data{ $1 } }, $2; } for my $key ( sort keys %data ) { print join ' ', $key, @{ $data{ $key } }, scalar @{ $data{ $key } +}, "columns\n"; }` [download] ======================== I have files by name datafile1,datafile2,datafile3,datafile4.........datafile200 in a directory. But these files are stored in a a different pattern ...datafile1,datafile10,datafile11,datafile12 and so on. The above program is reading and writing in the same order. I would like to pick data from in the an order from datafile1, 2, 3 to data200. Any suggestions and additions are appreciated. Thank you.	[reply] [d/l]
Re^7: opening many files by Anonymous Monk on Feb 29, 2012 at 08:16 UTC
Re^4: opening many files by wanttoprogram (Novice) on Feb 28, 2012 at 16:32 UTC
thank you. the code is working fine. could you please explain how sort is working in your code. what changes do i have to make to code to get all the data with out any sorting. thank you	[reply]