Shell Programming and Scripting

Hi friends

I have a zip file 1.zip which contains three text files a.txt b.txt c.txt
I want to grep some text(keyword) in those 3 files without extracting all the three files to a local directoryusing the command,
unzip -p 1.zip |grep "search text" >result.txt

The Output file is looking like this:
Search text from a.txt
Search text from b.txt
Search text from c.txt

But i need the following output:
a.txt: Search text from a.txt
b.txt: Search text from b.txt
c.txt: Search text from c.txt

I mean I need the file identity in each matching text string from each file.
I hope all of you understood the problem statement.
Please send me the modified command.Regards
Sidda

Ad hoc (untested):

Code:

unzip -p 1.zip | grep --with-filename 'search text'  > result.txt

Remark: as stated in the according man page, 'unzip -p' means "unzip to stdout / pipe". Therefore, depending on it's contents, it might be more efficient to unzip the archive "once and (for) all", then grep through the resulting (temporary) directory (?).

Thanks Dr. House. I got it.. It works well with new command mentioned by you.