RTC(3) Library Functions Manual RTC(3)NAME
rtc - real-time clock and non-volatile RAM
SYNOPSIS
bind #r /dev
/dev/rtc
/dev/nvram
DESCRIPTION
The rtc device supports the Mostek MK48T12-15 Zeropower/Timekeeper and similar devices with real-time clocks and non-volatile RAM.
The rtc file behaves just like /dev/time (see cons(3)). The real-time clock is maintained on-board; /dev/time is set from the file server.
Neither is necessarily more accurate.
The nvram file provides (if permission allows) access to the local non-volatile RAM. For example, boot(8) reads the machine's key from
there (see auth(8)).
SEE ALSO auth(8), boot(8)SOURCE
/sys/src/9/*/devrtc.c
RTC(3)
Check Out this Related Man Page
rtc(1M) System Administration Commands rtc(1M)NAME
rtc - provide all real-time clock and GMT-lag management
SYNOPSIS
/usr/sbin/rtc [-c] [-z zone-name]
DESCRIPTION
On x86 systems, the rtc command reconciles the difference in the way that time is established between UNIX and MS-DOS systems. UNIX systems
utilize Greenwich Mean Time (GMT), while MS-DOS systems utilize local time.
Without arguments, rtc displays the currently configured time zone string. The currently configured time zone string is based on what was
last recorded by rtc-z zone-name.
The rtc command is not normally run from a shell prompt; it is generally invoked by the system. Commands such as date(1) and rdate(1M),
which are used to set the time on a system, invoke /usr/sbin/rtc -c to ensure that daylight savings time (DST) is corrected for properly.
OPTIONS -c This option checks for DST and makes corrections if necessary. It is normally run once a day by a cron job.
If there is no RTC time zone or /etc/rtc_config file, this option will do nothing.
-z zone-name This option, which is normally run by the system at software installation time, is used to specify the time zone in which
the RTC is to be maintained. It updates the configuration file /etc/rtc_config with the name of the specified zone and the
current GMT lag for that zone. If there is an existing rtc_config file, this command will update it. If not, this command
will create it.
FILES
/etc/rtc_config The data file used to record the time zone and GMT lag. This file is completely managed by /usr/sbin/rtc, and it is
read by the kernel.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Architecture |x86 |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO date(1), rdate(1M), attributes(5)SunOS 5.10 3 Oct 2003 rtc(1M)
Which Unix Certification is the most needed these days? This is a big question think about it...
- SUN unix certification?
- SCO unix certification?
- SOLARIS unix certification?
- ....
AIX 4
AIX 4.1
AIX 4.2
AIX 4.x
BSDI 2.0
FreeBSD 2.2
HP-UX 10
HP-UX 10.10
HP-UX 10.20 ... (7 Replies)
My background as a nuclear engineer has provided me many opportunities to interact with computing. I have now decided to make the career change into the wonderful world of UNIX since my industry continues to die a slow death. Can my vague college experience (beginner at best) using UNIX suffice... (4 Replies)
Hi!
I'm not a UNIX fanatic but I like using it for the
Oracle database since it's not stable in the Windows NT
environment (what is?).
Problem: Is there any command to show me the amount
of installed physical-memory in the machine? Is
there some other way to show the processes which uses... (4 Replies)
ok, i've seen a thread similar to this going, but it just seemed to die before any answer surfaced, so -- here i go.
got a sparc 4 running solaris 8 and i'm trying to get my tcp/ip connectivity going. everything is cool so far, i can hit sites via IP addresses -- but can't resolve any domain... (5 Replies)
i am used to press the escape button to automatically fill up the missing words of a file name in an HPUX. how come i cannot do the same thing for Sun? do i have to set anything to activate this? if so is it possible to automatically go to this mode when a user logs in?
how about history? how... (6 Replies)
Hi,
I'm new to this forum, but i'm getting to work on some unix and i like it a lot. I'm trying to figure out a way i can create a shortcut command for a long pathname for example, if i needed to access a file in a particular directory i would type "cd /sampledata/IFS/IFS_DEV/HDC/files/glitter".... (9 Replies)
Hi board!
Can anybody tell me how to configure the Keyboard shortcuts of Firefox?
I know that there is an extension called keyconfig and I used it with Firefox 1.0 but I it wasn't updated since 2005 or something. I also had a closer look at about:config but didn't find anything. My Google... (7 Replies)
Hello,
I am having a problem to create a shortcut in a directory linked to another directory in my home directory. For example, I would like to create a shortcut 'outputs', which directly links to the real 'outputs' in my home directory. So, I was wondering if ln is the correct command in this... (5 Replies)
Hi,
I'm the new user of linux/unix. Can I ask that anybody know how to use the linux/unix shortcut key to search a specific file from a list of directory?
For example, I know the file name that I want to search. But I forget which directory or location is my desired file put.Got any shortcut... (7 Replies)
Hello,
i would like to know the alternate command in Linux for the below command used in Solaris.
# prtconf -D | egrep 'pci,|network|ethernet|SUNW,qfe'
pci, instance #0 (driver name: pcicmu)
pci, instance #0 (driver name: px)
pci, instance #0 (driver name: pxb_plx)
... (6 Replies)
Hi,
sorry if this is the wrong forum for this question but I couldnt spot another obvious forum for it.
I have a windows shortcut which opens up a saved session in putty. From this session I then ssh to another remote server. I was wondering is there a way that I can either edit my shortcut... (5 Replies)
Hello all,
I am facing some problem after installing the Openoffice in Solaris 10. The installation is successful but i cannot find any icon or shortcut on both Application and Desktop... please help me on this.... (8 Replies)
hi,
I have a netbook with duo boot (win7 starter + ubuntu 12.04).
I tested it only in ubuntu and I could not set illumination by pressing "function+right arrow" or "function+left arrow" buttons.
Has anybody ever faced similar problem?
Thanks in advance
Boris (6 Replies)
I have directory with shorcuts of files.
for example:
gara@yn\short\name1 ( shortcut to gara@yn\FOLDER\OPT\GARA\1.jpg )
gara@yn\short\name2 ( shortcut to gara@yn\FOLDER\OPT\GARA\11.jpg )
gara@yn\short\name3 ( shortcut to gara@yn\MARA\URSA\2.jpg )
gara@yn\short\name4 ( shortcut to... (6 Replies)
Dear All,
I want to run a shell script with out logging to putty but configuring it to a keyboard short cut it windows PC. Can this be done? I want this to rename a log in a specified folder in a system
Thanks (8 Replies)