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Full Discussion: 60 second Timer with Shell Script
Top Forums Shell Programming and Scripting 60 second Timer with Shell Script Post 302358597 by Scrutinizer on Saturday 3rd of October 2009 11:07:59 AM
Old 10-03-2009
e.g.
Code:
#!/bin/ksh
for (( i=60; i>0; i--)); do
  sleep 1 &
  printf "  $i \r"
  wait
done

This work in ksh as well. For posix you probably have to use a while loop.
Last edited by Scrutinizer; 10-04-2009 at 02:56 PM.. Reason: replaced \b\b with \r
 

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LEARN ABOUT MINIX

let

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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