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# 1  
Old 07-10-2014
Updating a File


I have a below requirement and need your help in this regard.

I have two timestamps in a file i.e.


When I first run the script file, it sets the 'TimeBefore' to todays date.
When I run the script for second time it should set TimeAfter_1 to value as 'TimeBefore' and TimeAfter_2 to value as 'TimeBefore' but minus 5 minutes


First Time script is run:

Second Time Script is run:
TimeAfter_2=2014-07-  ** 5 mins less from Time Before

I am able to achieve First Time script is run, but unable to get when second time script is run. Is there a way I can read the value of 'TimeBefore' and assign it to 'TimeAfter_1' & 'TimeAfter_2'

NOTE: This is in same file and all 3 variables will be on fixed line


Last edited by Don Cragun; 07-10-2014 at 06:20 AM.. Reason: Add CODE tags.
# 2  
Old 07-10-2014
How do you propose to keep track of whether you are in run #1 of the script, run #2 of the script, or run #3 of the script?

Please post your existing code if you want meaningful help.
# 3  
Old 07-10-2014

I will be invoking this script from Informatica ETL Tool.

First run will set

. I am achieving this using SED command as below

cd /TWData/control/Param/ && sed "2s/=.*/=$(date +"%Y-%m-%d-%H.%M.%S" )/" FileA.prm > temp.prm && mv temp.prm FileA.prm

After I finish my processing I will invoke second run (which will be via ETL tool) I need to set 'TimeAfter_1' to value as 'TimeBefore' and 'TimeAfter_2' to value as 'TimeBefore' but minus 5 minutes

Hope this helps.

# 4  
Old 07-10-2014
I would suggest you to have these timestamps in a file which will not be modified by any other process.

So, for the first run of the script you can print "TimeBefore" to $CURRENT_DATE. The other two will be NULL.

On the second run,

if "TimeBefore" is set then read the value, print "TimeAfter1" as "TimeBefore"
Reduce 5 minutes, then print as "TimeAfter2" as "Reduced_Value"

Hope this helps...
This User Gave Thanks to PikK45 For This Post:
# 5  
Old 07-10-2014
Thanks Pikk45 , but I am not able to get as to how I can read the value of "TimeBefore' and assign it to "TimeAfter1"

How can I read and assign the value of "TimeBefore" to "TimeAfter1"

- VP

---------- Post updated at 08:24 AM ---------- Previous update was at 07:54 AM ----------

Hi All,

I am partly successful with assigning "TimeBefore" to "TimeAfter_1". How can I assign "TimeAfter_2" as this should be 5 minutes less. I am on AIX 6.1 and it doesn't support normal date calc functions. Any help will be really appreciated

# 6  
Old 07-10-2014
 perl -Mstrict -e 'sub iso_stamp{
       my $epoch=shift;my @time=localtime($epoch);
       return sprintf "%04d-%02d-%02d.%02d.%02d",$time[5]+1900,$time[4]+1,@time[3,2,1];
my $epoch_now=time(); print iso_stamp($epoch_now),"\n",iso_stamp($epoch_now - 300),"\n";'

These 2 Users Gave Thanks to Skrynesaver For This Post:

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