Getting a relative timestamp from timestamp stored in a file
Hi,
I've a file in the following format
As you can see the file is sorted according to the timestamp.
I want the output in such a form that it will consist of relative timestamp in seconds for every timestamp in each line stored in a file.
For eg:
For above file the relative timestamp will be calculated w.r.t first timestamp.
Thus, the desired output would be
How can I deal with this?
Thanks in advance.
Hi,
I need to recursively find alll files generated as of today. I was able to use find and ls -l to do that but the problem i am facing is there are around 48000 subdirectories it needs to search in.
Any help is appreciated.
krisdhar (4 Replies)
Hi,
Could someone please tell me how to find the last modified date (date,hours,minutes,seconds) of a file in the format YYYY-MM-DD hh:mm:ss of a file using only standard HP-UX commands?
I looked for options in "ls" command but I couldn't find any options for HP-UX which gets the date details... (4 Replies)
hi
i need a scrit to convert one date format to another. for example
i have three columns in a file which gets a different format, but lastly i want output
with stadard timestamp as "yyyy-mm-dd hh:mm:ss"
column1 column2 ... (2 Replies)
Hi All,
I am new to unix programming. I am trying for a requirement and the requirement goes like this.....
I have a test folder. Which tracks log files. After certain time, the log file is getting overwritten by another file (randomly as the time interval is not periodic). I need to preserve... (2 Replies)
Hi,
In a field, I should receive the date with time stamp in a particular field. But sometimes the vendor sends just the date or the timestamp or correctl the date×tamp. I have to figure out the the data is a date or time stamp or date×tamp.
If it is date then append "<space>00:00:00"... (1 Reply)
I need to be able to identify files with file timestamps greater than a given timestamp.
I am using the following solution, although it appears to compare files at the "seconds" granularity and I need it at the milliseconds. When I tested my solution, it missed files that had timestamps... (3 Replies)
Hi Friends
I need to get the tine stamp of a file and based on this time stamp I am doing a comparison and based on this i need to call a java jar file. I am using ksh shell and in this stat is not there.
So instead of stat I am using ls -l command and using awk i am getting $6 $7 and $8... (2 Replies)
Hi Friends,
I have the following logfile. Currently time in india is 07/31/2014 12:33:34 and i have the following content in logfile. I want to display only those entries which contain string 'Exception' within last 3 hours. In this case, it would be the last line only
I can get the... (12 Replies)
Hello ,
I am working on AIX. I have to convert Unix timestamp to normal timestamp. Below is the file. The Unix timestamp will always be preceded by
EFFECTIVE_TIME as first field as shown and there could be multiple EFFECTIVE_TIME in the file : 3.txt
Contents of... (6 Replies)
So basically I have a log file and each line in this log file starts with a timestamp:
MON DD HH:MM:SS
SEP 15 07:30:01
I need to grep all the lines between last hour timestamp and current timestamp. Then these lines will be moved to a tmp file from which I will grep for particular strings. ... (1 Reply)
Discussion started by: nms
1 Replies
LEARN ABOUT REDHAT
apr::perlio
PERLIO(1) User Contributed Perl Documentation PERLIO(1)NAME
APR:PerlIO -- An APR Perl IO layer
SYNOPSIS
use APR::PerlIO ();
sub handler {
my $r = shift;
open my $fh, ">:APR", $filename, $r or die $!;
# work with $fh as normal $fh
close $fh;
return Apache::OK;
}
DESCRIPTION
"APR::PerlIO" implements a Perl IO layer using APR's file manipulation as its internals.
Why do you want to use this? Normally you shouldn't, probably it won't be faster than Perl's default layer. It's only useful when you need
to manipulate a filehandle opened at the APR side, while using Perl.
Normally you won't call open() with APR layer attribute, but some mod_perl functions will return a filehandle which is internally hooked to
APR. But you can use APR Perl IO directly if you want.
METHODS
Perl Interface:
open()
To use APR Perl IO to open a file the four arguments open() should be used. For example:
open my $fh, ">:APR", $filename, $r or die $!;
where:
the second argument is the mode to open the file, constructed from two sections separated by the ":" character: the first section is
the mode to open the file under (>, <, etc) and the second section must be a string APR.
the fourth argument can be a "Apache::RequestRec" or "Apache::ServerRec" object.
the rest of the arguments are the same as described by the open() manpage.
seek()
seek($fh, $offset, $whence);
If $offset is zero, "seek()" works normally.
However if $offset is non-zero and Perl has been compiled with with large files support ("-Duselargefiles"), whereas APR wasn't, this
function will croak. This is because largefile size "Off_t" simply cannot fit into a non-largefile size "apr_off_t".
To solve the problem, rebuild Perl with "-Uuselargefiles". Currently there is no way to force APR to build with large files support.
The C interface provides functions to convert between Perl IO and APR Perl IO filehandles.
SEE ALSO
The perliol(1), perlapio(1) and perl(1) manpages.
perl v5.8.0 2002-06-05 PERLIO(1)