Thanks a lot dogz007

I have understood what you explained and I think your code is very good Thanks

However, I have a problem

the result of the code with the files posted in the beginning is this 

Slot_time;Aircraft_Id;EOBT;ETOT;CTOT;ATOT;ETO;CTO;ATO;Last_DLA;EOBT_DL
+A;Anticip_DLA_min;Flag_EOBT_DLA;Last_FPL;EOBT_FPL;Anticip_FPL_min;Fla
+g_EOBT_FPL;ETOT_First;Delta_ETOTs_min;ATFM_Delay;;;;;;;;
08:40:00;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:40:58;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:41:56;BMA2CW;08:00;08:20;08:33;08:33;08:31;;08:41;07:52:00;08:00;-8
+;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:42:55;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:43:53;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:44:51;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:45:50;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:46:48;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:47:46;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:48:45;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:49:43;DAL11;08:10;08:30;08:30;08:39;08:47;08:47;08:50;;;;;05:03:00;
+08:10;-187;;08:30;0;0;;;;;;;;
DAL12;DAL;B772;KATL;EGKK;22:05;1325;05:39;339
08:50:41;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:51:40;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:52:38;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;
08:53:36;ACA879;07:30;07:42;07:42;07:52;08:51;08:51;08:53;;;;;05:06:00
+;07:30;-144;;07:42;0;0;;;;;;;;;;;;;;;;;;;;;;;;;;;;

[download]

I cannot understand why the data added are not on the same line as the data of the first file

DAL12 should have been on the same line as DAL11 and I cannot understand because there is chomp in the code

Well, I am going to make a post on this particular point

Thanks a lot for your explanations

In reply to Re^2: concatenation of lines from two different files by steph_bow
in thread concatenation of lines from two different files by steph_bow

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