Contatenate Strings
From ArcoWiki
In order to Contatenate Strings it is necessary to use the command CONCAT.
$$ Example of concat Command
DECL/char,256,FILENAME,PART1,NAME
PART1=ASSIGN/'MY_PART'
NAME=ASSIGN/'MY_NAME'
FILENAME=ASSIGN/CONCAT(PART1,NAME,'.TXT')
