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Full Discussion: Sysdate setting in .profile
Top Forums Shell Programming and Scripting Sysdate setting in .profile Post 302408561 by malickhat on Tuesday 30th of March 2010 12:52:17 AM
Old 03-30-2010
Quote:
Originally Posted by SteveR77
malickhat,

There is an issue if you are wishing the sysdate variable to be dynamic.

The .profile will only be executed once when the user in question logs in so the value it will hold as you have already stated will be static or a constant.

The only way that you could force it to be dynamic would be to perform the execution of the .profile every time you wished to get your date time stamp.

This would potentially create a lot of overhead because in effect you would be resetting the environment every time you needed to get an updated date value.

The catch here is it appears that the goal is counter to what you are actually attempting to accomplish.

If you could please try to explain what it is you are attempting to accomplish once more. I understand that it may not be easy to do but it may provide what I am missing in order to try to help you find a solution that will meet the demands of your project.
My Problem is ,i have one script wich takes a back of xyz file in /home to /backup dir.this backup is scheduled for daily process ,what i want to make is that in that script the copy line
Code:
cp /home/xyz /backup/xyz.$SYSDATE

the $SYSDATE here i've to get is from the time of execution(current time).
so i thought of putting this line in my .profile
Code:
SYSDATE=`date +'%d.%B.%Y.%H:%M.%S'`
export SYSDATE

but it's not working i'm getting the same time every time ,i guess my situation is some what understand by you all
 

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LEARN ABOUT OPENSOLARIS

profile

profile(7D)							      Devices							       profile(7D)

NAME

       profile - DTrace profile interrupt provider

DESCRIPTION

       The profile driver is a DTrace dynamic tracing provider that adds time-based interrupt event sources that can be used as DTrace probes.

       Each  profile  event  source is a time-based interrupt firing every fixed, specified time interval. You can use these probes to sample some
       aspect of system state every unit time and the samples can then be used to infer system behavior. If the sampling rate is high, or the sam-
       pling  time  is	long, an accurate inference is possible. By using the DTrace facility to bind arbitrary actions to probes, you can use the
       profile provider to sample practically anything in the system. For example, you could sample the state  of  the	current  thread,  the  CPU
       state, or the current machine instruction each time a probe fires.

       The  profile  driver  is  not  a  public interface and you access the instrumentation offered by this provider through DTrace. Refer to the
       Solaris Dynamic Tracing Guide for a description of the public documented interfaces available  for  the	DTrace	facility  and  the  probes
       offered by the profile provider.

ATTRIBUTES

       See attributes(5) for a description of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWdtrp			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Private			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       dtrace(1M), attributes(5), dtrace(7D)

       Solaris Dynamic Tracing Guide

SunOS 5.11							    4 Sep 2003							       profile(7D)
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