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Unix Script Syntax

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# 1  
Old 02-28-2008
Unix Script Syntax
Hi Josh

Hope you are doing fine..I have a small requirement but unable to get a syntax for it.

Here is how it is.


There is a Server say ABC.From another Server i need to get records from Server ABC.

Now logic is written as follows.

It creates a file as per sysdate and append the current $$ and then gets the records in the file.
In this process we are getting the two file same of same data.
First file have few records (truncketed file) and the second file have the
full (total file) records including the records in first file

For eg:-

File 2007_12_-16-20764_1.txt for 20071214 20071215 have the 18 Records
File 2007_12_-16-20764_2.txt for 20071214 20071215 have the 186 Records ( included the 18 records)


What we want is only the second file..Now how to check if each of the file is correct is if the file contains a 9 in the end


Here is a Tail of few Lines of a Valid file
-------------------------------------------


1378272549781002 MM 378276160711008 MM 378519137713007 RIVERBED 034213 10003087 0175566881 149035 00004525400+00000000000550100000000000000084020000000000055010000000000000008402000000100000000081CM 154531207313501200711082007110920071122 OI0000000005501HESS 38285 000000000 CAMP HILL PAREF# 000045254 7176129616 11/08/07 23784769232298445230HESS 38285 4175 MARKET STREET CAMP HILL PA 17011 UNITED STATES 840 07005541N 728000002
2378276160711008 378519137713007 +0000000000055010000001+0000000000000000000000 +000000000252178+0000000004521292222DOUGLAS C HAVERSTOCK +00000000012004920000014-00000000032000020000001+0000000003110832+0000000000000002+0000000000000002+0000000000000002A20000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005000 0000000000050000000000000000000000000000000020061209000000000000000000000000000000000000000000000000
3378276160711008 +0000000000055010000001+0000000000000000000000 22MM +00000000012004920000014-00000000032000020000001+0000000003110832+0000000000000002+0000000000000002+0000000023062482000010000 000000000000000000000000
4 +0000000024321620000165-000000001186789000001222 20071110 378272549781002 MM +00000001502068720001306-00000002732291120000338+0000000154891072+0000000078292992+0000000032848502+0000000743719192007080000 000000000000000000000000
9 000028389 000221556 KR01025001 20071109 20071110 0000285


An Invalid File could be something like
-----------------------------------------



2378270195921005 379609106972004 +0000000000040200000001+0000000000000000000000 +000000000060857+0000000001529712222MARY CARLEY +00000000004892720000008-00000000014104120000001+0000000000000002+0000000000000002+0000000000000002+0000000000000002A20000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005000 0000000000050000000000000000000000000000000020061209000000000000000000000000000000000000000000000000
1378272549781002 JS 378270195921005 AJS2 379610140911008 JS 045371 10001144 0614072677 149035 00000000000+00000000000146400000000000000084020000000000014640000000000000008402000000100000000081CM 110130707313501200711062007110920071128 050000000001464LOUIES OKC OK CITY OKREF# 00000000000 RESTAURANT 11/06/07 1350314530 LOUIE'S ON THE LAKE, L.L. LOUIE'S ON THE LAKE 9401 LAKE HEFNER PKWY OKLAHOMA CITY OK 73120-2075 UNITED STATES 840C07005812N 010000002
2378270195921005 379610140911008 +0000000000014640000001+0000000000000000000000 +000000000034584+0000000000076502222JS +00000000002693420000009+00000000000000020000000+0000000000000002+0000000000000002+0000000000000002+ 0000000000000002A200000000000000000000

So when it gets these records from ABC it should check if last line has a 9 as shown above.If yes then we actually process this file
or else we delete this file becuase we dont want to process this.

Can u help me in this

Thanks
MM
# 2  
Old 02-28-2008
One way to find the first character of the last line:

Code:
First_Char_Last_Line=$(tail -1 file|awk '{print substr($0, 1, 1}')

Regards
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