Manual Pages for UNIX Operating System command usage for man let

User Commands                                              let(1)



NAME
     let - shell built-in function to evaluate one or more arith-
     metic expressions

SYNOPSIS
  ksh
     let arg...


  ksh93
     let [expr...]


DESCRIPTION
  ksh
     Each  arg  is  a  separate  arithmetic  expression   to   be
     evaluated.

  ksh93
     let evaluates each expr in the current shell environment  as
     an  arithmetic  expression  using  ANSI  C syntax. Variables
     names are shell variables and they are recursively evaluated
     as  arithmetic  expressions to get numerical values. let has
     been made obsolete by the ((...)) syntax of  ksh93(1)  which
     does  not  require  quoting of the operators to pass them as
     command arguments.

EXIT STATUS
  ksh
     ksh returns the following exit values:

     0    The value of the last expression is non-zero.


     1    The value of the last expression is zero.


  ksh93
     ksh93 returns the following exit values:

     0     The last expr evaluates to a non-zero value.


     >0    The last expr evaluates to 0 or an error occurred.


ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:






SunOS 5.11           Last change: 2 Nov 2007                    1






User Commands                                              let(1)



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | SUNWcs                      |
    |_____________________________|_____________________________|


SEE ALSO
     ksh(1), ksh93(1), set(1), typeset(1), attributes(5)














































SunOS 5.11           Last change: 2 Nov 2007                    2