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Homework and Emergencies Emergency UNIX and Linux Support Waiting for wildcard filename to exists in while loop Post 302916761 by Amey Joshi on Thursday 11th of September 2014 07:15:12 PM
Old 09-11-2014
RedHat Waiting for wildcard filename to exists in while loop

Hi Experts,

We are developing a script which will wait for the trigger file(with datetime in the trigger file name).
But the problem is when I use 'while' loop to wait for the file, it waits for the filename with wilcard in it that is wait for 'Trigger*.done' file. Smilie
Below is the script

Code:
#!/bin/ksh

path="/home/user/"
triggerfile="Trigger*.done"
counter=0
max_counter=12
actualfile=${path}${triggerfile}

while [ ! -f ${actualfile} ]; do
let counter=counter+1
if [ $counter -ge $max_counter ]
then
 echo "email reached max counter"
else
 sleep 5
fi
done

This script works when I touch 'Trigger*.done' file in the source. Is there anyway to loop until the filename(with wildcard character) exists?SmilieSmilie

Appreciate your help!!

Thanks
 

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Mojo::IOLoop::Delay(3pm)				User Contributed Perl Documentation				  Mojo::IOLoop::Delay(3pm)

NAME
Mojo::IOLoop::Delay - Synchronize events SYNOPSIS
use Mojo::IOLoop::Delay; # Synchronize multiple events my $delay = Mojo::IOLoop::Delay->new; $delay->on(finish => sub { say 'BOOM!' }); for my $i (1 .. 10) { $delay->begin; Mojo::IOLoop->timer($i => sub { say 10 - $i; $delay->end; }); } # Wait for events if necessary $delay->wait unless Mojo::IOLoop->is_running; DESCRIPTION
Mojo::IOLoop::Delay synchronizes events for Mojo::IOLoop. EVENTS
Mojo::IOLoop::Delay can emit the following events. "finish" $delay->on(finish => sub { my $delay = shift; ... }); Emitted safely once the active event counter reaches zero. ATTRIBUTES
Mojo::IOLoop::Delay implements the following attributes. "ioloop" my $ioloop = $delay->ioloop; $delay = $delay->ioloop(Mojo::IOLoop->new); Loop object to control, defaults to the global Mojo::IOLoop singleton. METHODS
Mojo::IOLoop::Delay inherits all methods from Mojo::EventEmitter and implements the following new ones. "begin" my $cb = $delay->begin; Increment active event counter, the returned callback can be used instead of "end". my $delay = Mojo::IOLoop->delay; Mojo::UserAgent->new->get('mojolicio.us' => $delay->begin); my $tx = $delay->wait; "end" $delay->end; $delay->end(@args); Decrement active event counter. "wait" my @args = $delay->wait; Start "ioloop" and stop it again once the "finish" event gets emitted, only works when "ioloop" is not running already. # Use the "finish" event to synchronize portably $delay->on(finish => sub { my ($delay, @args) = @_; ... }); $delay->wait unless $delay->ioloop->is_running; SEE ALSO
Mojolicious, Mojolicious::Guides, <http://mojolicio.us>. perl v5.14.2 2012-09-05 Mojo::IOLoop::Delay(3pm)
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