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Command Reference

114089 Rev. A 2-17

let

The let command allows you to evaluate a simple arithmetical or logical

expression and assign the result to a given variable.

The

let command has the following syntax:

let

<ﬂag>

formats the result, as follows:

-s in signed decimal (default)

-u in unsigned decimal

-h in hexadecimal

-date as MM/DD/YY

-days as DD days

-time as HH:MM:SS; Modulo 24 hours

-tz as [+|-]HH:MM; Modulo +/-12:00

The following ﬂags may be used together. Flag combinations other than those

listed below are invalid.

-date -time as MM/DD/YY HH:MM:SS

days -time as DD days HH:MM:SS

The ﬂags must immediately precede the variable name that represents the result,

as shown in the following example:

let -h a = 1 + 2

In the following script, variable name b is assigned the sum of variable name a

plus 1.

setenv a 1

let b=$a+1

The let command evaluates an expression from left to right. You can use

parentheses to change the order of the evaluation.

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