incr - Increment the value of a variable
incr varName ?increment?
Increments the value stored in the variable whose name is varName.
The value of the variable must be an integer.
If increment is supplied then its value (which must be an
integer) is added to the value of variable varName; otherwise
1 is added to varName.
The new value is stored as a decimal string in variable varName
and also returned as result.
add, increment, variable, value
Copyright © 1993 The Regents of the University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.
Copyright © 1995-1997 Roger E. Critchlow Jr.
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