gauss 21> fdemo2
 c1 = a
 c2 = bc
 c4 = defg
 lcalph = abcdefghijklmnopqrstuvwxyz
 Through constant assignment
 Enter anything & <CR> to continue
a
 c1 // c2 // c4 = abcdefg
 Through concatenation
 Enter anything & <CR> to continue
a
 len(c1) =            1
 len(buffer) =           60
 Through string length
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a
 lcalph(1:13) = abcdefghijklm
 lcalph(18:18) = r
 Through substring extraction
 Enter anything & <CR> to continue
a
 c4 = defZ
 Through substring assignment
 Enter anything & <CR> to continue
a
 <somefilename                                                >
 <somefilename>
 <Some multi-word message                                     >
 <Some multi-word message>
 indlnb(buffer) =            0
 Through indlnb usage
 Enter anything & <CR> to continue
a
 Through fdemo2
 Enter anything & <CR> to continue
a