I have 2 files that I need to combine.

One file is looks like this:

71664107;1;1;05-FEB-07;12-FEB-07;

The other file looks like this:

U;71664107;dummy;Pirovano;M;04-SEP-75;Georgia;MI;1;1;31;S;S;;;Y;05-02-2007;0;12-FEB-07;

I need to combine both files together. I need the shorter file added to the end of the longer file based on the common # 71664107.

I have tried using get line but sometimes it does not work.

Any suggestions?

Isn't all the information of the file with the short lines already in the file with the long lines?

U;71664107;dummy;Pirovano;M;04-SEP-75;Georgia;MI;1;1;31;S;S;;;Y;05-02-2007;0;12-FEB-07;

So you might be able to use:
nawk 'BEGIN { FS=";" } { print $0 $2";"$9";"$10";"$17";"$19";" }' <longfile>

I have two files that I need to combine. The information is similar but 1 file is larger than the other. They must be combined.

Thanks

If the files are sorted correctly, then try using join...

$ head file[12]
==> file1 <==
71664107;1;1;05-FEB-07;12-FEB-07;

==> file2 <==
U;71664107;dummy;Pirovano;M;04-SEP-75;Georgia;MI;1;1;31;S;S;;;Y;05-02-2007;0;12-FEB-07;

$ join -t ';' -1 2 -2 1 file2 file1
71664107;U;dummy;Pirovano;M;04-SEP-75;Georgia;MI;1;1;31;S;S;;;Y;05-02-2007;0;12-FEB-07;;1;1;05-FEB-07;12-FEB-07;

If they are in sorted format and lines matches. just use below command.

paste long_file short_file