TIME(2) Linux Programmer's Manual TIME(2)NAME
time - get time in seconds
SYNOPSIS
#include <time.h>
time_t time(time_t *t);
DESCRIPTION
time() returns the time as the number of seconds since the Epoch, 1970-01-01 00:00:00 +0000 (UTC).
If t is non-NULL, the return value is also stored in the memory pointed to by t.
RETURN VALUE
On success, the value of time in seconds since the Epoch is returned. On error, ((time_t) -1) is returned, and errno is set appropriately.
ERRORS
EFAULT t points outside your accessible address space.
CONFORMING TO
SVr4, 4.3BSD, C89, C99, POSIX.1-2001. POSIX does not specify any error conditions.
NOTES
POSIX.1 defines seconds since the Epoch using a formula that approximates the number of seconds between a specified time and the Epoch.
This formula takes account of the facts that all years that are evenly divisible by 4 are leap years, but years that are evenly divisible
by 100 are not leap years unless they are also evenly divisible by 400, in which case they are leap years. This value is not the same as
the actual number of seconds between the time and the Epoch, because of leap seconds and because system clocks are not required to be syn-
chronized to a standard reference. The intention is that the interpretation of seconds since the Epoch values be consistent; see
POSIX.1-2008 Rationale A.4.15 for further rationale.
SEE ALSO date(1), gettimeofday(2), ctime(3), ftime(3), time(7)COLOPHON
This page is part of release 3.44 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2011-09-09 TIME(2)
Check Out this Related Man Page
TIME(2) Linux Programmer's Manual TIME(2)NAME
time - get time in seconds
SYNOPSIS
#include <time.h>
time_t time(time_t *t);
DESCRIPTION
time() returns the time as the number of seconds since the Epoch, 1970-01-01 00:00:00 +0000 (UTC).
If t is non-NULL, the return value is also stored in the memory pointed to by t.
RETURN VALUE
On success, the value of time in seconds since the Epoch is returned. On error, ((time_t) -1) is returned, and errno is set appropriately.
ERRORS
EFAULT t points outside your accessible address space.
CONFORMING TO
SVr4, 4.3BSD, C89, C99, POSIX.1-2001. POSIX does not specify any error conditions.
NOTES
POSIX.1 defines seconds since the Epoch as a value to be interpreted as the number of seconds between a specified time and the Epoch,
according to a formula for conversion from UTC equivalent to conversion on the naive basis that leap seconds are ignored and all years
divisible by 4 are leap years. This value is not the same as the actual number of seconds between the time and the Epoch, because of leap
seconds and because clocks are not required to be synchronized to a standard reference. The intention is that the interpretation of sec-
onds since the Epoch values be consistent; see POSIX.1 Annex B 2.2.2 for further rationale.
SEE ALSO date(1), gettimeofday(2), ctime(3), ftime(3), time(7)COLOPHON
This page is part of release 3.25 of the Linux man-pages project. A description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/man-pages/.
Linux 2010-02-25 TIME(2)
it has taken me many years to realize what a load of crap bill and his army have developed through the years...i am sick to death of windows...
i really want to start operating in unix...
i just have a few questions...
is linux as powerfull as unix? which flavour of unix should i learn to use?... (7 Replies)
Hi .. can anyone help with this pleeaasse ..
I have a Sco Unixware 7.1.0 server which has been running fine for nearly 10 years ... we have not had to do any os changes for several years.
We tend to reboot it about once a month just to keep everthing clean!
My issue is that we have just... (7 Replies)
Hello - I have a folder that contains files from 2003 till 2010. I am trying to figure out a command that would seperate each years file and show me a count?
Even if i can find a command that would give me year by year count, thats good enough too.
Thanks (8 Replies)
A few years ago, Dell announced they were selling PCs with Linux (Ubuntu) preinstalled or with no OS installed. It was about time! So a couple years ago I bought the Inspiron 1525n laptop that I'm typing this on with Ubuntu preinstalled. Yea! (Though I immediately wiped Ubuntu and installed... (7 Replies)
Hi Guys ,
I see a weird problem with one of the AIX Machine, The time is changing randomly on the server. The seconds part of the time is what is the problem which is jumping on a uneven order and coming back to the original state after some time and again the same.. I have collected the time... (8 Replies)
hi there ,
i m new to unix , i d like to ask how can a get only even numbered lines matches with the word i search from txt file
for example :
3461:1.D. The copyright laws of the place where you are located also govern
3471:1.E. Unless you have removed all references to Project... (17 Replies)
Hi there
I came across this script online to convert Epoch time to proper date format, but I am receiving the following error
Also, I have HISTTIMEFORMAT set in user's .profile so that their history output shows time stamps. Additionally I have changed their .history location to a dedicated... (9 Replies)
Hi all,
I used to post here years ago, and was a moderator, my old username: zazzybob.
Anyway, after a few years away focusing on my career, I'm back and keener than ever to get involved in the unix.com community again.
I'm looking forward to getting back into the swing of things, helping... (11 Replies)
Hi
I need to get IP address from linux server.
There are many script to do this, but no one is perfect.
They just grab eth0 or eth1 from ifconfig, and this may, may not be correct.
You may have several IF configured, but only one is default GW
Here is how I would like the process to be.... (8 Replies)
Hello all,
I am a newbie in shell scripting.
I want to know what does the below text means?
6.355u 1.679s 0:12.68 63.2% 0+0k 0+0io 0pf+0w
I am getting this line (on terminal) after every successful execution of my script.
Thanks in advance . . :)
-MD (15 Replies)
I have just been on RedHat SA 3 training course (4 days) and sat exams EX200 (RHCSA) and EX300 (RHCE)
The daft thing was that politics meant I wasn't allowed to take courses SA 1 or 2. So I learnt about stuff I would never use (SELinux; iSCSI; NFS Kerberos encrypted with user specific access... (22 Replies)
Well I have just noticed over the years that I have PMs that I have not seen or even known about.
Apologies if any of you have not had any replies to your PMs. It is too late now as some go back to my early days on here.
The notification that comes up currently has notified me of a couple... (10 Replies)
I don't know how to start this but here goes.
I've been "using" Linux for over 10 years, possibly more and I still feel like I'm nowhere
where I should be. I'll be fair most of my time was spent either figuring out how
to run games on *nix at the time but as I got older and "wiser" I... (8 Replies)