Re^4: How to check lines that start with the same word then delete one of them

I've tested your code with this input :

 
my @in = (
        'S_FER_SCAM1_ARRESTO;ARRESTO;ST;0;ST;1;0;TS;0;0',
    'S_VINREU_RLIP1_ALLARMEZONA3;ALLARME ZONA  3;SU LI IR ST;0;SU LI I
+R ST;1;0;TS;0;0',
    'S_VINREU_RLIP1_ANOMBAT;ANOMALIA BATTERIA;SU LI IR ST;0;SU LI IR S
+T;1;0;TS;0;0',
    'S_FER_VENT1_ERRCOLINV;ERRORE PROFIBUS COLL INVERTER;SU LI IR ST;0
+;SU LI IR ST;1;0;TS;0;0',
    'S_VINREU_RLIP1_CIRCZONE1;CIRCUITO ZONA 1 FUNZONANTE;SU LI IR ST;0
+;SU LI IR ST;1;0;TS;0;0',
    'S_VINREU_RLIP1_CIRCZONE2;CIRCUITO ZONA 2 FUNZONANTE;SU LI IR ST;0
+;SU LI IR ST;1;0;TS;0;0',
        'S_FER_SCAM1_ARRESTO;ARRESTO;SU LI IR ST;0;SU LI IR ST;1;0;TS;
+0;0',
    'S_FER_VENT1_ERRCOLINV;ERRORE PROFIBUS COLL INVERTER;ST;0;ST;1;0;T
+S;0;0'
);
[download]

I print @have array and it shows 7 lines with S_FER_VENT1_ERRCOLINV is duplicated (should show only 6), it hide only one, in my data file I've lines that have the same id ($1) two times and others are normal (no duplicate id)

Comment on Re^4: How to check lines that start with the same word then delete one of them Select or Download Code

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Re^5: How to check lines that start with the same word then delete one of them by hippo (Archbishop) on Apr 10, 2020 at 22:27 UTC
That's because you have changed the criteria. `'S_FER_VENT1_ERRCOLINV;ERRORE PROFIBUS COLL INVERTER;ST;0;ST;1;0;TS;0;0'` does not match the check in your initial post of `if($var eq $1 and $line2 =~ /(.?);.?;SU LI IR ST;.?;SU LI IR ST;.? +;.?;.?;.?;.?(?:$)/)` [download] ... so it has not been removed. Did you not mean this? Was your initial post misleading?	[reply] [d/l] [select]