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Full Discussion: Issue when doing a loop
Top Forums UNIX for Beginners Questions & Answers Issue when doing a loop Post 303036402 by margel on Tuesday 25th of June 2019 03:47:15 AM
Old 06-25-2019
Issue when doing a loop

Hi,

I just have started learning shell scripting (sh). Why do i only get the date?

Code:
while read dt
do
   echo "Date : ${dt}
   sed -n '/${dt}/,/${dt}/p' file1.log | grep -w ERROR
done < date1.dat

INPUT - date1.dat
Code:
2019-04-05 04:58:25
2019-04-05 04:58:26
2019-04-05 05:00:56
2019-04-05 05:08:26
2019-04-05 05:14:08
2019-04-05 05:21:26
2019-04-05 05:31:08

Desired Output
Code:
Date : 2019-04-05 04:58:25
2019-04-05 04:58:25,696 [Timer-7] ERROR :  421 Exceeded allowable connection time, disconnecting.

Actual Output
Code:
Date : 22019-04-05 04:58:25
Date : 22019-04-05 04:58:26
Date : 22019-04-05 05:00:56
Date : 22019-04-05 05:08:26
Date : 22019-04-05 05:14:08
Date : 22019-04-05 05:21:26
Date : 22019-04-05 05:31:08

Moderator's Comments:
Mod Comment
Please wrap all code, file, input & output/errors in CODE tags
It makes it easier to read and preserves spacing for indenting code or fixed-width data

Last edited by rbatte1; 07-08-2019 at 07:09 AM..
 

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IO::Async::Timer::Absolute(3pm) 			User Contributed Perl Documentation			   IO::Async::Timer::Absolute(3pm)

NAME
"IO::Async::Timer::Absolute" - event callback at a fixed future time SYNOPSIS
use IO::Async::Timer::Absolute; use POSIX qw( mktime ); use IO::Async::Loop; my $loop = IO::Async::Loop->new; my @time = gmtime; my $timer = IO::Async::Timer::Absolute->new( time => mktime( 0, 0, 0, $time[4]+1, $time[5], $time[6] ), on_expire => sub { print "It's midnight "; $loop->stop; }, ); $loop->add( $timer ); $loop->run; DESCRIPTION
This subclass of IO::Async::Timer implements one-shot events at a fixed time in the future. The object waits for a given timestamp, and invokes its callback at that point in the future. For a "Timer" object that waits for a delay relative to the time it is started, see instead IO::Async::Timer::Countdown. EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters: on_expire Invoked when the timer expires. PARAMETERS
The following named parameters may be passed to "new" or "configure": on_expire => CODE CODE reference for the "on_expire" event. time => NUM The epoch time at which the timer will expire. Once constructed, the timer object will need to be added to the "Loop" before it will work. Unlike other timers, it does not make sense to "start" this object, because its expiry time is absolute, and not relative to the time it is started. AUTHOR
Paul Evans <leonerd@leonerd.org.uk> perl v5.14.2 2012-10-24 IO::Async::Timer::Absolute(3pm)
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