07-01-2008
unix time is kept by the kernel as 'epoch' seconds elapsed since Jan 1, 1970. All of the date functions and commands reference epoch seconds. You cannot set epoch seconds for one process. You can only trick some commands into thinking you are in a weird timezone, so that you can "go" backwards/forwards as much as 24 hours. No more because the length of a day is 24 hours. And you are not changing epoch seconds, just how they are interpreted.
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
When I type last oracle I get dates from Nov 28, 2000 all the way back to the beginning of time it seems. The 11-28-2000 entry states that Oracle is still logged in, but if you type a who, it shows only 1 entry - the currently logged in user (Me as oracle), but I logged in only minutes ago - and... (4 Replies)
Discussion started by: cuppjr
4 Replies
2. Programming
Hi !
How to reset a variable to 0 after a reset value, say 10 using bitwise
XOR.
For example,
int cnt=0;
if(cnt<10)
cnt++;
else
cnt = 0;
How can we achieve this by using XOR only.
thanks, (1 Reply)
Discussion started by: mrgubbala
1 Replies
3. Solaris
Hi all,
I'm developing a script to handle the various actions involved with user admin as root:
Reset password
create a new users
change a users email address, etc
We're in the process of changing over from "telnet" to "SSH" to establish terminal sessions on our Solaris 9/10 servers.
... (2 Replies)
Discussion started by: dewets
2 Replies
4. Shell Programming and Scripting
Hi,
I have modified the IFS variable in the K shell program and with in the program i want to reset to the default one. How do i reset the same.
e.g
in the begining of the program IFS is default
in the middle i changed it to
IFS="|"
and again i want the default value for the IFS.
... (2 Replies)
Discussion started by: vijaykrc
2 Replies
5. Shell Programming and Scripting
Hi,
Can any one provide the Unix command to reset the positional parameters?
Please see the below example where i have to pass 2 parameters to Shell1.sh.
Step1) . ./Shell1.sh 2 3
successfully executed, Then i executed(next step only) the same shell script again,this time no... (4 Replies)
Discussion started by: nmk
4 Replies
6. Solaris
while installing unix solaris I found that one of the CD's is corupted so I bring another copy of solaris CD's and type reboot instead of 'reboot cdrom' then the server goes in infinite loop of rebooting resetting??I tried to use ctrl+break but didnt work....how can I break this loop....plz help?? (4 Replies)
Discussion started by: mm00123
4 Replies
7. Solaris
Hi gurus,
I have a sun netra 240 server. I want to get to the ALOM but it always ask for login and password. Can anyone tell me how I can reset the ALOM it to default so I can be able to configure it?
Thanks lots. (2 Replies)
Discussion started by: cjashu
2 Replies
8. AIX
Does anybody know how to reset the NVRAM on a System p 520 (power 5)? (7 Replies)
Discussion started by: livehho
7 Replies
9. UNIX for Dummies Questions & Answers
Hello All,
So I have been running into an issue with a USB Modem where if someone ends their dialin connection abruptly from the other side the modem gets stuck
and I found that the only way to fix it is to either unplug the USB Modem and plug it back in, or just reboot. I'd rather not reboot... (5 Replies)
Discussion started by: mrm5102
5 Replies
LEARN ABOUT OPENSOLARIS
tcl_gettime
Tcl_GetTime(3TCL) Tcl Library Procedures Tcl_GetTime(3TCL)
__________________________________________________________________________________________________________________________________________________
NAME
Tcl_GetTime - get date and time
SYNOPSIS
#include <tcl.h>
Tcl_GetTime( timePtr )
ARGUMENTS
Tcl_Time * timePtr (out) Points to memory in which to store the date and time information.
_________________________________________________________________
DESCRIPTION
The Tcl_GetTime function retrieves the current time as a Tcl_Time structure in memory the caller provides. This structure has the follow-
ing definition:
typedef struct Tcl_Time {
long sec;
long usec;
} Tcl_Time;
On return, the sec member of the structure is filled in with the number of seconds that have elapsed since the epoch: the epoch is the
point in time of 00:00 UTC, 1 January 1970. This number does not count leap seconds - an interval of one day advances it by 86400 seconds
regardless of whether a leap second has been inserted.
The usec member of the structure is filled in with the number of microseconds that have elapsed since the start of the second designated by
sec. The Tcl library makes every effort to keep this number as precise as possible, subject to the limitations of the computer system. On
multiprocessor variants of Windows, this number may be limited to the 10- or 20-ms granularity of the system clock. (On single-processor
Windows systems, the usec field is derived from a performance counter and is highly precise.)
SEE ALSO
clock
KEYWORDS
date, time
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWTcl |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org.
Tcl 8.4 Tcl_GetTime(3TCL)