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+.TH TOTAL 1
+.SH NAME
+total \- add numbers in first column, write total
+.SH SYNOPSIS
+.B total
+.IR file ...
+.SH DESCRIPTION
+.B total
+reads files named on the command line, or the standard input if none given,
+and adds together the numbers in the first column of each line.
+At the end, it writes out the sum.