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Full Discussion: Bash - countdown timer
Top Forums Shell Programming and Scripting Bash - countdown timer Post 302597787 by xqwzts on Sunday 12th of February 2012 06:55:41 AM
Old 02-12-2012
Bash - countdown timer

Hello, I have another problem with my script - I would like to have a countdown timer visible on the screen, and at the same time, I want te be able to do something else. And when the time runs out, I need to know about that inside the script somehow and do some action. I guess that would require 2 threads to achieve that but maybe there is another solution in bash?

Maybe there is some equivalent to fork() - and to give both processes different task to do?

Thanks in advance.

Last edited by xqwzts; 02-12-2012 at 09:12 AM..
 

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time(1T)						       Tcl Built-In Commands							  time(1T)

__________________________________________________________________________________________________________________________________________________

NAME
time - Time the execution of a script SYNOPSIS
time script ?count? _________________________________________________________________ DESCRIPTION
This command will call the Tcl interpreter count times to evaluate script (or once if count isn't specified). It will then return a string of the form 503 microseconds per iteration which indicates the average amount of time required per iteration, in microseconds. Time is measured in elapsed time, not CPU time. EXAMPLE
Estimate how long it takes for a simple Tcl for loop to count to a thousand: time { for {set i 0} {$i<1000} {incr i} { # empty body } } SEE ALSO
clock(1T) KEYWORDS
script, time ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +--------------------+-----------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +--------------------+-----------------+ |Availability | SUNWTcl | +--------------------+-----------------+ |Interface Stability | Uncommitted | +--------------------+-----------------+ NOTES
Source for Tcl is available on http://opensolaris.org. Tcl time(1T)
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