Code:
$ head ICT-DW-20121122_144811.CSV
AARHDR,ICT6.0.7SP3,PRICING,DW_CDR,CSV,20121122 001052
AARTAB,Stored CDR,20121122 001052
AARCOL,FK_CDR_SOURCE_FILE_NUMBER,CDR_NUMBER,CDR_ORIGIN,RECORD_SEQUENCE_NUMBER,LINK_FIELD,RECORD_TYPE,CALL_START_DATE,CALL_SEGMENT_DIRECTION,CHARGE_DIRECTION,NETWORK_OPERATOR_ID,FRANCRATE_USED,COMP_DATA_UNIT,RATE_UNIT_VOLUME
AARSIZ,12,9,1,15,2,2,YYYYMMDD,8,14,10,28,28,1,8,10,8,4,1,1,YYYYMMDD HH24MISS,20,249,6,14,1,3,5,3,8,4,7,20,8,3,8,4,30,1,8,3,1,3,11,11,8,3,5,2,3,13,13,6,9,13,15,12,13,8,14
AARTYP,NUMBER,NUMBER,CHAR,VARCHAR2,VARCHAR2,VARCHAR2,DATE,VARER,NUMBER,NUMBER,NUMBER,NUMBER,VARCHAR2,NUMBER
,2060024,1001,F,203,01,00,20121120,23513300,35.00,0000003500,03183260533,03212046506,X,,0,,,N,O,20121122 001052,EDFN,,,0,O,STD,COMCE,BSC,COMBUCBG,TAND,57,0406,MOB-COM,SAL,SAL-MOB,MM08,Telefonos de MINUTO,1.00,1,0.000000,0.00,0.00,,0.00,
,2060024,1001,F,203,01,00,20121120,23513300,35.00,0000003500,03183260533,03212046506,X,,0,,,N,O,20121122 001052,EDFN,,,0,O,STD,COMCE,BSC,COMBUCBG,TAND,57,0406,MOB-