Hi,
I want to read file multiple times. Right now i am using while loop but that is not working.
ex.
First while loop running 10 times but inter while loop is only executed 1 time , 2nd time it is not reading same file. I assume that is because same file already looped. want to overcome this issue.
Please suggest some solution.
Thanks,
Mallik.
Last edited by Franklin52; 10-09-2013 at 11:04 AM..
Reason: Please use code tags
Please forgive this I think rather basic question.
I have been away from UNIX for a very long time and am in need of some help.
I need to be able to check for the existance of a specific file name say 'file.dat' in a particular location
If the file exists then run a second process (at... (2 Replies)
#!/bin/sh
count=0
for i in 2 4 6
do
echo "i is $i"
count='expr $count + 1'
done
echo "The loop was executed $count times"
with these scripts
my output is :
i is 2
i is 4
i is 6
The loop was executed expr $count + 1 times
What should I do to get the value instead of 'expr... (17 Replies)
Hi Experts,
I have a code like this.
=====
#include....
int main()
{
int count = 0;
while(1){
printf("\n Interation number is: %d \n ",count);
rv = system(" test.sh > log.txt " );
if (-1 == rv)
{
printf("Could not generate static log: error... (12 Replies)
Is there any FASTEST way to loop a script 10k times
my script works likes this
c-randomnumbers-script -i input1.bed -g g19 -e DB >> output1
I need to run this 10k times by using consecutive outputs to get my final output i.e, output10000
c-random-script -i input1.bed -g g19 -e DB >>... (5 Replies)
Hi
Am trying to print the PIDs of process in a file and trying to grep any PID from that file
I set the if condition as $value != "PID" and $value != "-"
Assign that number to a variable
Am confused since am using while loop to read the line from file
and again if condition to check those... (2 Replies)
Hi Fellows,
I was wondering how I can remove first few characters from multiple file names without do loop in unix?
e.g.
water123.xyz
water456.xyz
to
123.xyz
456.xyz
Thanks
Paul
Thanks. (3 Replies)
hi, i am running a java script on few thousand files (e1.rnk....en.rnk) but manually,. is there any way to run it automatically by changing the output directory (-out) ?
thanx in advance
ex:
java -jar commands -res /path/e1.rnk -out /path/e1 -gui false
java -jar commands -res /path/e2.rnk... (1 Reply)
hdr=$(cut -c1 $path$file|head -1)#extract header”H”
trl=$(cut -c|path$file|tail -1)#extract trailer “T”
SplitFile=$(cut -c 50-250 $path 1$newfile |sed'$/ *$//' head -1')# to trim white space and extract table name
If; then # start loop if it is a header
While read I #read file
Do... (4 Replies)
After the successful start of server, it should check the status again, if it is not running ,it should go through the loop for 2 times.
Even after two times of execution if still the server is not running it should send an alert email. Please help (1 Reply)
hi,
I am using hp unix server and not getting variable output present inside the while loop. I have tried changing the code and need to verify whether it is proper practice of code. I am expecting the output of varible RUN_FILE 3 to TRUE which i get inside the while loop.
RUN_FILE 1=TRUE... (8 Replies)
Discussion started by: gowthamsoft
8 Replies
LEARN ABOUT DEBIAN
io::async::timer::periodic
IO::Async::Timer::Periodic(3pm) User Contributed Perl Documentation IO::Async::Timer::Periodic(3pm)NAME
"IO::Async::Timer::Periodic" - event callback at regular intervals
SYNOPSIS
use IO::Async::Timer::Periodic;
use IO::Async::Loop;
my $loop = IO::Async::Loop->new;
my $timer = IO::Async::Timer::Periodic->new(
interval => 60,
on_tick => sub {
print "You've had a minute
";
},
);
$timer->start;
$loop->add( $timer );
$loop->run;
DESCRIPTION
This subclass of IO::Async::Timer implements repeating events at regular clock intervals. The timing may or may not be subject to how long
it takes the callback to execute. Iterations may be rescheduled runs at fixed regular intervals beginning at the time the timer was
started, or by a fixed delay after the previous code has finished executing.
For a "Timer" object that only runs a callback once, after a given delay, see instead IO::Async::Timer::Countdown. A Countdown timer can
also be used to create repeating events that fire at a fixed delay after the previous event has finished processing. See als the examples
in "IO::Async::Timer::Countdown".
EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters:
on_tick
Invoked on each interval of the timer.
PARAMETERS
The following named parameters may be passed to "new" or "configure":
on_tick => CODE
CODE reference for the "on_tick" event.
interval => NUM
The interval in seconds between invocations of the callback or method. Cannot be changed if the timer is running.
first_interval => NUM
Optional. If defined, the interval in seconds after calling the "start" method before the first invocation of the callback or
method. Thereafter, the regular "interval" will be used. If not supplied, the first interval will be the same as the others.
Even if this value is zero, the first invocation will be made asynchronously, by the containing "Loop" object, and not
synchronously by the "start" method itself.
reschedule => STRING
Optional. Must be one of "hard", "skip" or "drift". Defines the algorithm used to reschedule the next invocation.
"hard" schedules each iteration at the fixed interval from the previous iteration's schedule time, ensuring a regular repeating
event.
"skip" schedules similarly to "hard", but skips over times that have already passed. This matters if the duration is particularly
short and there's a possibility that times may be missed, or if the entire process is stopped and resumed by "SIGSTOP" or similar.
"drift" schedules each iteration at the fixed interval from the time that the previous iteration's event handler returns. This
allows it to slowly drift over time and become desynchronised with other events of the same interval or multiples/fractions of it.
Once constructed, the timer object will need to be added to the "Loop" before it will work. It will also need to be started by the "start"
method.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2012-10-24 IO::Async::Timer::Periodic(3pm)