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Top Forums Shell Programming and Scripting variable assignment in new shell Post 82574 by Perderabo on Friday 2nd of September 2005 02:20:17 PM
Old 09-02-2005
Use single quotes:
ksh 'i=2;echo I is $i'

Your internal ksh command is being constructing by an external ksh instance. ksh looks inside double quotes and replaces variables. Since i was not set, $i is replaced with nothing which is what your internal ksh will see.
 

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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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