UNIX for Dummies Questions & Answers

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Ex of Warning messgae,(Many similar lines occure for Both Test and Test1)

-WARNING:Below Field not implemented in file File name: /home/test/
new/file1, msg buffer is:
:Test:000948

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:-WARNING:Below Field not implemented in file File name: /home/test/
new/file1, msg buffer is:
:Test1:23244
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Previously my requirement,
For current day i will check the log for Warning line given above then i will move all the lines except the warning line and the next line to it to a temp file(load_new.txt) so the script below wrked fine,
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#!/bin/ksh
i=`date +%d`
sed '
/WARNING:Below field is not in File name/{
N
/\n/d
}' load.$i >> load_new.txt
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But now the requirement changed as,
From monday to friday i want to check the previous day log for the Warning line given above,
then i wil print all the lines except the warning lines and the next line to it to the same log file.

Here 2 constraints are,
1. If the current day is monday then it should check the friday log since saturday,sunday logs will also be there.
log will be stored as,
load.01
load.02
...
load.30
Only Monday to friday logs will contain that :Test: tag

2. As you see above examples the tags are Test, Test 1
The warning messgae line will be same for both Test and Test1
But i want only for Test and NOT for Test1 so the warning message for Test1 and Test1 line(next line of warning) should not be removed.
So only Warning messgae of Test and Test line(Ex: :Test1:23244) should be removed and other lines should be written to the same previousday log file.
can any one please say how to get the above requirement?