in reply to Re: how to modify foreach
in thread how to modify foreach

Hello Hippo and many thanks for your help. here is what i have done : replace

##merge data after filtering sub singlefile { my ( $file,$out) = @_; #open file open(FILE, $file) or die ("error occured while opening file"); #create list from file my @save = <FILE>; close(FILE); #empty table rows which do not meet criteria foreach (@save){ $_ = "" unless ($_ =~ m/"ENABLED","OLTP",/ && $_ =~m/^GREP/ ); $_ = "" if ($_ =~m/SYSMAN/|| m/SYS/); chomp $_; } #open output file, add data, close open(FILE, ">>OLTP.txt") or die ("error occured while opening file + OLTP.txt"); foreach (@save){ print FILE $_."\n" if ($_); } close(FILE); }

by

##merge data after filtering sub singlefile { my ( $file,$out) = @_; #open file open(FILE, $file) or die ("error occured while opening file"); #create list from file my @save = <FILE>; close(FILE); #empty table rows which do not meet criteria my $keep = ''; foreach (@save){ $_ = "" unless ($_ =~ m/"ENABLED","OLTP",/ && $_ =~m/^GREP +/ ); $_ = "" if ($_ =~m/SYSMAN/|| m/SYS/); if ($_) { $keep = $_; last; } } open(FILE, ">>OLTP.txt") or die ("error occured while opening +file OLTP.txt"); print FILE $keep if $keep; close(FILE); }

and the result is that i got only a file with only the header "User script,Serveur Name,Instance Name,Date of script,Serveur Name2,Instance.... and nothing else. if you want to give me a mail, i can send you some data to check. thank again OliverR

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Re^3: how to modify foreach
by poj (Abbot) on Jun 08, 2018 at 11:35 UTC

    It looks like you may have copy/pasted the line contituation character +

    $_ = "" unless ($_ =~ m/"ENABLED","OLTP",/ && $_ =~m/^GREP +/ );

    Should be one line

                $_ = "" unless ($_ =~ m/"ENABLED","OLTP",/ && $_ =~m/^GREP/ );

    Have a read of File::Find

    poj

      you make my day !!! thank you everyone for your help and have a nice week end
      OliverR

Re^3: how to modify foreach
by hippo (Archbishop) on Jun 08, 2018 at 09:34 UTC
    if you want to give me a mail, i can send you some data to check.

    That's not how we do things here. :-)

    Have a read of both SSCCE and How to ask better questions using Test::More and sample data. If you can provide your code and a small set of data along those lines I've no doubt that we'll be able to see where you are going wrong.

      oki, here is a set of DATA :

      in a file named xxxoptions.csv i have this :

      GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION,TABLE_COMPRESSION,101189,count,DBA_TABLES,SYS,/BIC/D1002561,,"ENABLED","OLTP",
      GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION,TABLE_COMPRESSION,101189,count,DBA_TABLES,SAPABW,/BIC/D1002562,,"ENABLED","OLTP",
      GREPME>>,xxxxx,BP5,2017-11- 27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION,TABLE_COMPRESSION,101189,count,DBA_TABLES,SAPABW,/BIC/D1002566,,"ENABLED","OLTP",
      GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION,TABLE_COMPRESSION,101189,count,DBA_TABLES,SYS,/BIC/D100256P,,"ENABLED","OLTP",

      Here, line 2 and 3 match with my criteria (because others are SYS)

      In a second file named YYYoptions.csv i have this :

      GREPME>>,yyyyy,IP5,2017-11-27_22:40:08,yyyyy,IP5,ADVANCED_COMPRESSION,TABLE_COMPRESSION,80440,count,DBA_TABLES,SAPISU,KWNPHRE,,"ENABLED","OLTP",
      GREPME>>,yyyyy,IP5,2017-11-27_22:40:08,yyyyy,IP5,ADVANCED_COMPRESSION,TABLE_COMPRESSION,80440,count,DBA_TABLES,SAPISU,KWNPHREPR,,"ENABLED","OLTP",
      GREPME>>,yyyyy,IP5,2017-11-27_22:40:08,yyyyy,IP5,ADVANCED_COMPRESSION,TABLE_COMPRESSION,80440,count,DBA_TABLES,SYSTEM,KWNPHRI,,"ENABLED","OLTP",

      Here, lines 1 and 2 match with my criteria

      so , the result expected would be oltp.txt with header:

      User script,Serveur Name,Instance Name,Date of script,Serveur Name2,Instance Name2,ADVANCED_COMPRESSION~HEADER,TABLE_COMPRESSION~HEADER,2,count,DATA_DICTIONARY_VIEW,TABLE_OWNER,TABLE_NAME,PARTITION_NAME,COMPRESSION,COMPRESS_FOR

      and then my lines (1 per file, the first one who match with criteria)

      GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION,TABLE_COMPRESSION,101189,count,DBA_TABLES,SAPABW,/BIC/D1002562,,"ENABLED","OLTP"

      GREPME>>,yyyyy,IP5,2017-11-27_22:40:08,yyyyy,IP5,ADVANCED_COMPRESSION,TABLE_COMPRESSION,80440,count,DBA_TABLES,SAPISU,KWNPHRE,,"ENABLED","OLTP",

      thank again

      OliverR

        Since, despite my prodding, you have not provided an SSCCE here is one which uses Test::More and sample data, demonstrating that the filter works.

        use strict; use warnings; use Test::More tests => 1; my $out = filter (); my $want = qq#GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCE +D_COMPRESSION,TABLE_COMPRESSION,101189,count,DBA_TABLES,SAPABW,/BIC/D +1002562,,"ENABLED","OLTP",\n#; is ($out, $want); sub filter { my @save = (<DATA>); my $keep = ''; foreach (@save){ $_ = "" unless ($_ =~ m/"ENABLED","OLTP",/ && $_ =~ m/^GREP/ ) +; $_ = "" if ($_ =~m/SYSMAN/|| m/SYS/); if ($_) { $keep = $_; last; } } return $keep; } __DATA__ GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION, +TABLE_COMPRESSION,101189,count,DBA_TABLES,SYS,/BIC/D1002561,,"ENABLED +","OLTP", GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION, +TABLE_COMPRESSION,101189,count,DBA_TABLES,SAPABW,/BIC/D1002562,,"ENAB +LED","OLTP", GREPME>>,xxxxx,BP5,2017-11- 27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION +,TABLE_COMPRESSION,101189,count,DBA_TABLES,SAPABW,/BIC/D1002566,,"ENA +BLED","OLTP", GREPME>>,xxxxx,BP5,2017-11-27_22:36:57,xxxxx,BP5,ADVANCED_COMPRESSION, +TABLE_COMPRESSION,101189,count,DBA_TABLES,SYS,/BIC/D100256P,,"ENABLED +","OLTP",

        There are clearly things to be improved here - there's no point matching against both /SYS/ and /SYSMAN/ for example - but the concept of an SSCCE and the value of it should be informative.

        Please remember to put your data as well as your code within <code> tags when posting here.