FS means Field Separator , using FS="( )|(,)" means current FS is the space or ','
if you use the statement, the result is
lastname1 111 Hilversum
lastname2 222 Bussum
lastname3 333 Amsterdam
without FS="()|(,)" result is :
lastname1 111, Hilversum
lastname2 222, Bussum
lastname3 333, Amsterdam
they are different, first is 111 and the next is 111,
Code:
> cat data
Person:
Name: Firstname1 lastname1
Address: 111, Street "Narder straat"
City : Hilversum
Person:
Name : Fistname2 lastname2
Address: 222, Street "Zoud straat"
City: Bussum
Person:
Name : Firstname2 lastname3
Address: 333, Street "Station straat"
City: Amsterdam
Code:
> awk 'BEGIN{FS="( )|(,)"} /^Name/{n=$NF}/^Address/{a=$2" "$4" "$5}/^City/{print n,a,$NF}' data
lastname1 111 "Narder straat" Hilversum
lastname2 222 "Zoud straat" Bussum
lastname3 333 "Station straat" Amsterdam
.Aaron
