List file content
 

I have two files as below , I would like to compare the content

file 1
======
aaa.txt
111
222
bbb.txt
333
ccc.txt
ddd.txt
eee.txt

file 2
======
aaa.txt
444
bbb.txt
555
ccc.txt
ddd.txt
eee.txt

Result
======
aaa.txt
111
222
aaa.txt
444
bbb.txt
333
bbb.txt
555
ccc.txt
ccc.txt
ddd.txt
ddd.txt
eee.txt
eee.txt

Some content is the same ( eg. aaa.txt , bbb.txt , ccc.txt , ddd.txt , eee.txt ) , I would like to list its content by a condition to a file as the above result file - if the line is the same then output its next line(s) to the result file ,

can advise what can i do ?

thanks.

Not sure what exactly you are going for at the end, but have you tried using diff and/or sort? Maybe join also.... Have a look here - http://linux.about.com/od/lts_guide/a/gdelts43.htm