Hi,
I am trying to insert a timestamp after all the file names in a folder,after the timestamp is created in the filename the file size is becoming zero bytes.
please tell me where I am doing it wrong.
I have declared the variable in starting of my script.
timestamp=`date... (1 Reply)
I am having 6 files named file1,file2....file6 and i need to append number of lines in each file to begining of the file. For example,
If file 1 contains
a
b
c
d
then after adding new line file1 should contain
4
a
b
c
d
Thanks in advance. (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)
I have a statistical file populating every minute as below:
2011-11-11-1108 1955 891
2011-11-11-1109 2270 1049
2011-11-11-1110 1930 904
2011-11-11-1111 2030 931
2011-11-11-1112 1944 900
2011-11-11-1113 1922 875
Instead of having the date and time in the given format (2011-11-11-1113) I... (10 Replies)
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)
Version Info
$ cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.4 (Tikanga)
$
$ echo $0
-ksh
I was trying to append date to the file name. The following syntax has worked
$ touch HELLO-`date '+%d-%b-%Y'`.txt
$ ls -alrt HELL*
-rw-r--r-- 1 rlapp oinstall 0 Feb 20... (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 CENTOS
sd_journal_get_monotonic_usec
SD_JOURNAL_GET_REALTIME_USEC(3) sd_journal_get_realtime_usec SD_JOURNAL_GET_REALTIME_USEC(3)NAME
sd_journal_get_realtime_usec, sd_journal_get_monotonic_usec - Read timestamps from the current journal entry
SYNOPSIS
#include <systemd/sd-journal.h>
int sd_journal_get_realtime_usec(sd_journal* j, uint64_t* usec);
int sd_journal_get_monotonic_usec(sd_journal* j, uint64_t* usec, sd_id128_t* boot_id);
DESCRIPTION
sd_journal_get_realtime_usec() gets the realtime (wallclock) timestamp of the current journal entry. It takes two arguments: the journal
context object and a pointer to a 64-bit unsigned integer to store the timestamp in. The timestamp is in microseconds since the epoch, i.e.
CLOCK_REALTIME.
sd_journal_get_monotonic_usec() gets the monotonic timestamp of the current journal entry. It takes three arguments: the journal context
object, a pointer to a 64-bit unsigned integer to store the timestamp in, as well as a 128-bit ID buffer to store the boot ID of the
monotonic timestamp. The timestamp is in microseconds since boot-up of the specific boot, i.e. CLOCK_MONOTONIC. Since the monotonic clock
begins new with every reboot, it only defines a well-defined point in time when used together with an identifier identifying the boot. See
sd_id128_get_boot(3) for more information. If the boot ID parameter is passed NULL, the function will fail if the monotonic timestamp of
the current entry is not of the current system boot.
Note that these functions will not work before sd_journal_next(3) (or related call) has been called at least once, in order to position the
read pointer at a valid entry.
RETURN VALUE
sd_journal_get_realtime_usec() and sd_journal_get_monotonic_usec() returns 0 on success or a negative errno-style error code. If the boot
ID parameter was passed NULL and the monotonic timestamp of the current journal entry is not of the current system boot, -ESTALE is
returned by sd_journal_get_monotonic_usec().
NOTES
The sd_journal_get_realtime_usec() and sd_journal_get_monotonic_usec() interfaces are available as a shared library, which can be compiled
and linked to with the libsystemd-journal pkg-config(1) file.
SEE ALSO systemd(1), sd-journal(3), sd_journal_open(3), sd_journal_next(3), sd_journal_get_data(3), sd_id128_get_boot(3), clock_gettime(2),
sd_journal_get_cutoff_realtime_usec(3)systemd 208SD_JOURNAL_GET_REALTIME_USEC(3)