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::signal
IO::Async::Signal(3pm) User Contributed Perl Documentation IO::Async::Signal(3pm)NAME
"IO::Async::Signal" - event callback on receipt of a POSIX signal
SYNOPSIS
use IO::Async::Signal;
use IO::Async::Loop;
my $loop = IO::Async::Loop->new;
my $signal = IO::Async::Signal->new(
name => "HUP",
on_receipt => sub {
print "I caught SIGHUP
";
},
);
$loop->add( $signal );
$loop->run;
DESCRIPTION
This subclass of IO::Async::Notifier invokes its callback when a particular POSIX signal is received.
Multiple objects can be added to a "Loop" that all watch for the same signal. The callback functions will all be invoked, in no particular
order.
EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters:
on_receipt
Invoked when the signal is received.
PARAMETERS
The following named parameters may be passed to "new" or "configure":
name => STRING
The name of the signal to watch. This should be a bare name like "TERM". Can only be given at construction time.
on_receipt => CODE
CODE reference for the "on_receipt" event.
Once constructed, the "Signal" will need to be added to the "Loop" before it will work.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2012-10-24 IO::Async::Signal(3pm)