Re^7: Shorten a list...

Yes, it is necessary to see exactly what your file looks like. Could have saved some typing knowing that :-)

A possible solution is close to my first answer.

#!/usr/bin/perl
use strict;
use warnings;

{
    local ($/, $\) = ('', "\n\n");
    while (<DATA>) {
        chomp;
        print if tr/\n// > 1;
    }   
}


__DATA__
>Group 42
0    25ap, >name_06-T_1_0... at 92.00%
1    28ap, >name_06-T_1_0... *

>Group 43
0    28ap, >name_07-N_1_0... *

>Group 44
0    29ap, >name_07-N_1_0... *

>Group 45
0    25ap, >name_03-T_1_0... *
1    25ap, >name_06-T_1_0... at 100.00%
2    25ap, >name_07-N_1_0... at 100.00%
3    25ap, >name_11-N_1_0... at 100.00%
4    25ap, >name_14-T_1_0... at 100.00%
[download]

The statement local ($/, $\) = ('', "\n\n");, sets the INPUT_RECORD_SEPARATOR, $/, to read in paragraphs. A paragraph is lines of text followed by 1 or more blank lines, (2 or more newlines). The OUTPUT_RECORD_SEPARATOR, $\, is set to "\n\n". $\ is printed at the end of every print statement.

Comment on Re^7: Shorten a list... Select or Download Code

Replies are listed 'Best First'.
Re^8: Shorten a list... by la (Novice) on Oct 18, 2011 at 17:12 UTC
Hey, I'm sorry about not having it exact from the start. I will keep that in mind for any later posts. Thanks again for all of your help. Between the time I left and arrived at work this morning, the format was again changed. They took out the spaces between the group names: `>Group 42 0 25ap, >name_06-T_1_0... at 92.00% 1 28ap, >name_06-T_1_0... * >Group 43 0 28ap, >name_07-N_1_0... * >Group 44 0 29ap, >name_07-N_1_0... * >Group 45 0 25ap, >name_03-T_1_0... * 1 25ap, >name_06-T_1_0... at 100.00% 2 25ap, >name_07-N_1_0... at 100.00% 3 25ap, >name_11-N_1_0... at 100.00% 4 25ap, >name_14-T_1_0... at 100.00%` [download] I will try out the code you gave me and see if I can modify it for this new format. Thanks again for all of the help.	[reply] [d/l]
Re^9: Shorten a list... by la (Novice) on Oct 18, 2011 at 18:11 UTC
So in this case, I would be changing the file separator from defining a new paragraph with blank lines, to defining a new paragraph with ">Group". THen I need the script to print the paragraph if the paragraph is greater than 2 lines. Is this along the right track? `local ($/, $\) = ('', ">Group");` [download]	[reply] [d/l]
Re^10: Shorten a list... by Cristoforo (Curate) on Oct 18, 2011 at 20:23 UTC
`#!/usr/bin/perl use strict; use warnings; { local $/ = '>Group'; while (<DATA>) { chomp; print ">Group$_" if tr/\n// > 2; } } __DATA__ >Group 42 0 25ap, >name_06-T_1_0... at 92.00% 1 28ap, >name_06-T_1_0... * >Group 43 0 28ap, >name_07-N_1_0... * >Group 44 0 29ap, >name_07-N_1_0... * >Group 45 0 25ap, >name_03-T_1_0... * 1 25ap, >name_06-T_1_0... at 100.00% 2 25ap, >name_07-N_1_0... at 100.00% 3 25ap, >name_11-N_1_0... at 100.00% 4 25ap, >name_14-T_1_0... at 100.00%` [download] prints `>Group 42 0 25ap, >name_06-T_1_0... at 92.00% 1 28ap, >name_06-T_1_0... * >Group 45 0 25ap, >name_03-T_1_0... * 1 25ap, >name_06-T_1_0... at 100.00% 2 25ap, >name_07-N_1_0... at 100.00% 3 25ap, >name_11-N_1_0... at 100.00% 4 25ap, >name_14-T_1_0... at 100.00%` [download] If you want to separate the records with a newline in the output, add a newline in the print. `print ">Group$_\n" if tr/\n// > 2;`	[reply] [d/l] [select]