add -  Simple one-function adding machine

add is a simple awk script. If it's not working maybe the AWK_PATH
shell variable has been unset.


input a number, hit enter, see subtotal.
prepend a - to negative numbers, e.g.   -567
hit ctrl&d to exit.
Leaves a file "tape" in /scratch/tape.
add can be scripted.


SEE ALSO

spreadsheet / sc
awk
calc  / calculate
expr