oh, so what you are actually wanting is something simple as(?):
Code:
 

$blob=open(1,"myfile.txt")
$blob=open(2,"output.txt",5)
do
$line=readline(1)
$line=$line+";"
if instr($line,"FAX")
$line=$line+@crlf
endif
if 1<len($line)
$blob=writeline(2,$line)
endif
until @error
$blob=close(1)
$blob=close(2)

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