12-05-2011
Please post exactly which Operating System and version you have and what programming language or Shell you are using for you "application".
In many unix systems the first entry in the file /etc/utmp (/etc/utmpx in Solaris) is the "system boot" time in seconds since the epoch. See "man utmp". It is the same file which is read by the unix commands "uptime" and "who -b" (to name but a few).
gettimeofday(2) has more precision than time(2) .
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Hi Folks
uptime
12:24pm up 2 days, 3:12, 4 users, load average: 0.00, 0.00, 0.00
what does the load average figure mean..
regards
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I'm trying to get the uptime of my computer (Mac OS X) and I can go into the terminal and type "uptime" OK, and that gives me a string with the uptime in it. The problem is that the string changes a lot, and its very difficult to get the data I'm trying to extract out cleanly.
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On HP-UX, the 13th argument of uptime is sometime the load and sometime the word AVERAGE:???
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hello folks!
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HI All,
I have problem with "uptime" on one of the sun server.(SunOS 5.9 Generic_118558-11 sun4u sparc SUNW,Sun-Fire-V240).when i am issuing uptime command its not showing uptime.even its not showing output for who -b.
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HELLO ALL
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Hi,
I need some help about a script i need to write.
I want to check , if some specific process, are running since 2 hours.
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Hi!
I want to extract the uptime from the output of the uptime command.
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Hi All,
Having recently started a new job, a Data Center Migration in fact I have been tasked with looking at some of the older Solaris boxes when I came across this little gem.
nismas# uname -a
SunOS nismas 5.5.1 Generic_103640-27 sun4u sparc SUNW,Ultra-1
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LEARN ABOUT PLAN9
getutmp
GETUTMP(3) Linux Programmer's Manual GETUTMP(3)
NAME
getutmp, getutmpx - copy utmp structure to utmpx, and vice versa
SYNOPSIS
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <utmpx.h>
void getutmp(const struct utmpx *ux, struct utmp *u);
void getutmpx(const struct utmp *u, struct utmpx *ux);
DESCRIPTION
The getutmp() function copies the fields of the utmpx structure pointed to by ux to the corresponding fields of the utmp structure pointed
to by u. The getutmpx() function performs the converse operation.
RETURN VALUE
These functions do not return a value.
VERSIONS
These functions first appeared in glibc in version 2.1.1.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------------------+---------------+---------+
|Interface | Attribute | Value |
+----------------------+---------------+---------+
|getutmp(), getutmpx() | Thread safety | MT-Safe |
+----------------------+---------------+---------+
CONFORMING TO
These functions are nonstandard, but appear on a few other systems, such as Solaris and NetBSD.
NOTES
These functions exist primarily for compatibility with other systems where the utmp and utmpx structures contain different fields, or the
size of corresponding fields differs. On Linux, the two structures contain the same fields, and the fields have the same sizes.
SEE ALSO
utmpdump(1), getutent(3), utmp(5)
COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
Linux 2015-03-02 GETUTMP(3)