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Top Forums Shell Programming and Scripting If statement is not working in KSH Post 302495209 by methyl on Wednesday 9th of February 2011 04:29:12 PM
Old 02-09-2011
In ksh the bracket type is significant and important. It distinguishes between a "Test" and a "Conditional Expression". There is some common syntax but as soon as you get into boolean expressions they are quite different.

Code:
[[ conditional expression ]]
[ test ]

 

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let(1)                                                             User Commands                                                            let(1)

NAME
let - shell built-in function to evaluate one or more arithmetic expressions SYNOPSIS
ksh let arg... DESCRIPTION
ksh Each arg is a separate "arithmetic expression" to be evaluated. EXIT STATUS
The following exit values are returned: 0 The value of the last expression is non-zero. 1 The value of the last expression is zero. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ SEE ALSO
ksh(1), set(1), typeset(1), attributes(5) SunOS 5.10 15 Apr 1994 let(1)
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