Reading one variable from one file, checking whether it is existing in another file

vineelaregonda · #1 (**permalink**) 01-11-10, 18:05

Hi,

I have a table from which I can get the list of servers. This I am placing in one file (abc). I have one another file (say "xyz) with the list of servers (this is not from the table I am talking above).

Here I have to get the server names one by one from file "abc" and check whether the same is existing in the file "xyz".

For example :

file "abc" has
---------
PPMPDB
HPRD8
TFRCST
DFPDB
RXPPDB
SBOPDB
UCDP
ALGPDB
SMTP
SRMP
RMANREP
FPRD

file "xyz" has
-------------
PPMPDB
HPRD8
TFRCST
DFPDB
RXPPDB
SBOPDB
UCDP

Here "abc" and "xyz" are not same. wherever it is not matching I have to print msg.

Please let me know how to put this in script.

Regards,
Vineela

mike_bike_kite · #2 (**permalink**) 01-11-10, 19:02

Try the following command and filtering the output.

Code:

diff abc xyz

vineelaregonda · #3 (**permalink**) 01-11-10, 20:42

I can not do that here.

For example:

If the file1 has first two rows as follows

abcd
wxyz

and the file2 has

wxyz
abcd

If i execute "diff" command, i will get the difference like two are not same.
My requirement is, I have to check the word "abcd" in file2 (irrespective of the row number).

Hope my requirement is now clear.

kitaman · #4 (**permalink**) 01-12-10, 08:07

Code:

while read a
do
grep $a xyz
if [ $? -ne 0 ]
then
echo $a does not exist in xyz
fi
done <abc

mike_bike_kite · #5 (**permalink**) 01-12-10, 09:03

or even:

Code:

sort abc > sorted_abc
sort xyz > sorted_xyz
diff sorted_abc sorted_xyz

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