Although it is not specified by the POSIX standards and the Single UNIX Specifications, many implementations of the date utility provide a %s format conversion specification that will return Seconds since the Epoch. (i.e., the command:
will return the number of seconds since midnight on the morning of January 1, 1970 GMT.) This is a nice value to use for something like this since it is immune to timezone differences and is not affected by shifts to and from daylight savings time.
Another thing not specified by those standards is the network time protocol daemon. Look for an ntpd man page on your servers. If the man page is present ask your sys admins to be sure it is running on those servers.
I want to write a Kshell program which will start the servers(Oracle,DataIntegrator).
Can anybody help me with this?
I would appreciate your help.
Thanks in advance (0 Replies)
system = AIX
How can I explain this.....
Keep in mind I do not want to login to the boxes, persay, and that I am fairly new to scripting and unix.
I want to use SSH.
I have a script on server1, this is where I want it to run from.
I have server2 and server3, where I want the script to... (2 Replies)
Hi all
I am running a major script of my application in development for implementing code changes for process improvement in time. The script runs in production once in a month . It takes 8 hours 30 mins in Production server . what surprice me is , when I run the same script in development server... (9 Replies)
Hello All,
I have a problem calculating the time difference between start and end timings...!
the timings are given by 24hr format..
Start Date : 08/05/10 12:55
End Date : 08/09/10 06:50
above values are in mm/dd/yy hh:mm format.
Now the thing is, 7th(08/07/10) and... (16 Replies)
Hello,
I am looking for a way for a server to launch a connection command to one of the other servers where the connection command has already embedded in it a server name, user name and a password. (2 Replies)
Hi ,
What is the diffence between executing the script like
./myscript.ksh
. ./myscript.ksh
I have found 2 difference but could not find the reason
1. If i export a variable in myscript.ksh and execute it like . ./myscript.ksh the i can access the other scripts that are present in... (5 Replies)
HI all
I have written a ksh to execute PL/sql procedure and generate the log file. The script is working fine to the extent of calling the taking input, executing PL/SQL procedure.
On one server the log file is getting generated properly. i,e it shows the DBMS output . The log file size was... (9 Replies)
Hi Friends,
I have 2 varaibles which contain
START=`date '+ %m/%d/%y %H:%M:%S'`
END=`date '+ %m/%d/%y %H:%M:%S'`
i want the time difference between the two variables in Seconds.
Plz help. (2 Replies)
I was looking at this script which outputs the two lines which differs less than one sec.
#!/usr/bin/perl -w
use strict;
use warnings;
use Time::Local;
use constant SEC_MILIC => 1000;
my $file='infile';
## Open for reading argument file.
open my $fh, "<", $file or die "Cannot... (1 Reply)
Discussion started by: cele_82
1 Replies
LEARN ABOUT BSD
date
DATE(1) General Commands Manual DATE(1)NAME
date - print and set the date
SYNOPSIS
date [-nu] [-d dst] [-t timezone] [yymmddhhmm [.ss] ]
DESCRIPTION
If no arguments are given, the current date and time are printed. Providing an argument will set the desired date; only the superuser can
set the date. The -d and -t flags set the kernel's values for daylight savings time and minutes west of GMT. If dst is non-zero, future
calls to gettimeofday(2) will return a non-zero tz_dsttime. Timezone provides the number of minutes returned by future calls to gettimeof-
day(2) in tz_minuteswest. The -u flag is used to display or set the date in GMT (universal) time. yy represents the last two digits of
the year; the first mm is the month number; dd is the day number; hh is the hour number (24 hour system); the second mm is the minute num-
ber; .ss is optional and represents the seconds. For example:
date 8506131627
sets the date to June 13 1985, 4:27 PM. The year, month and day may be omitted; the default values will be the current ones. The system
operates in GMT. Date takes care of the conversion to and from local standard and daylight-saving time.
If timed(8) is running to synchronize the clocks of machines in a local area network, date sets the time globally on all those machines
unless the -n option is given.
FILES
/usr/adm/wtmp to record time-setting. In /usr/adm/messages, date records the name of the user setting the time.
SEE ALSO gettimeofday(2), utmp(5), timed(8),
TSP: The Time Synchronization Protocol for UNIX 4.3BSD, R. Gusella and S. Zatti
DIAGNOSTICS
Exit status is 0 on success, 1 on complete failure to set the date, and 2 on successfully setting the local date but failing globally.
Occasionally, when timed synchronizes the time on many hosts, the setting of a new time value may require more than a few seconds. On
these occasions, date prints: `Network time being set'. The message `Communication error with timed' occurs when the communication between
date and timed fails.
BUGS
The system attempts to keep the date in a format closely compatible with VMS. VMS, however, uses local time (rather than GMT) and does not
understand daylight-saving time. Thus, if you use both UNIX and VMS, VMS will be running on GMT.
4th Berkeley Distribution March 24, 1987 DATE(1)