Question

I have a text file that looks like:

6789 Here is a bunch of text

4565 More text......................................................
.....etc

I need to pull out the first word (numbers) and create a new file contain all of the following text making the first word its file name until a blank line and then repeat creating many text files.

Answer 1

the awk line can do it:

awk 'BEGIN{RS=""} {fn=$1;gsub(/^[0-9]+\s/,"");print $0 > (fn".txt")}' yourFile

test:

kent$  l 
total 0
(no file in current dir)

kent$  echo "6789 Here is a bunch of text

4565 More text......................................................
.....etc"|awk 'BEGIN{RS=""} {fn=$1;gsub(/^[0-9]+\s/,"");print $0 > (fn".txt")}'

kent$  ls
4565.txt  6789.txt

and, the contents are:

kent$  head *.txt
==> 4565.txt <==
More text......................................................
.....etc

==> 6789.txt <==
Here is a bunch of text