vp wrote:
> I have 3 flat files, have to merge those files into one file and have
> to append the individual sequence number from the filename to its file
> individual file data
>
> File Names:
> ==============
> xxx.000123.dat
> xxx.000124.dat
> xxx.000125.dat
> ..
> ..
> ..
>
>
> For example if File name 1: "xxx.000123.dat" has all the last names of
> 10 people and file name 2:"xxx.000124.dat" has 10 Last Name, I have
> merge them into a one file XXX.dat with 20 records and and at the same
> time have the add the number from the file "000123" at the beginning
> all the 10 records and add the number from the file "000124" at the
> beginning of the other 10 records in the merged file.
>

perl -ne '$ARGV =~ /\.(\d+)\.dat/; print "$1 $_"' xxx.*.dat > xxx.dat

--
Alex.

On Feb 15, 11:44 am, "vp" wrote:
> I have 3 flat files, have to merge those files into one file and have
> to append the individual sequence number from the filename to its file
> individual file data
>
> File Names:
> ==============
> xxx.000123.dat
> xxx.000124.dat
> xxx.000125.dat
> .
> .
> .
>
> For example if File name 1: "xxx.000123.dat" has all the last names of
> 10 people and file name 2:"xxx.000124.dat" has 10 Last Name, I have
> merge them into a one file XXX.dat with 20 records and and at the same
> time have the add the number from the file "000123" at the beginning
> all the 10 records and add the number from the file "000124" at the
> beginning of the other 10 records in the merged file.

Better use a join command to merge common fileds in a file( use loops
to join a number of files, if the files are less these can be directly
specified). Use awk to add the desired fileds.
HTH