gpg and double quotation mark problem

[Shaoping Xie]

Greetings:
 
    I am working on a script to automate the encryption process and have encountered a strange problem:
 
    Line 1:    $GPG "$ADDITIONALOPTIONS" -r "$GPGKEY" -o "$OUTPUTFILE" -e "$INPUTFILE"
    Line 2:    $GPG $ADDITIONALOPTIONS -r $GPGKEY -o $OUTPUTFILE -e $INPUTFILE

    Line 2 works as expected while line 1 does not work. 

    Any explanation?

    Thank you,
    Shaoping
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