UNIX for Dummies Questions & Answers

Hi all,
Please help me in the following dbt

i want to know the different files in the current and the sub directory which have some search key in that . for example

i want to know all filenames followed by the word 'unix' in all files.

the file name and the matching word have to be displayed.

i tried with the following command

find . -exec grep "aki" '{}' \;

but the file name was not listing

Please also help me in knowing the significance of " " and {} \ in the above command

Code:

find . -exec grep -l 'aki' {} \;

the backslash forces the shell to treat the semicolon as a literal, otherwise the shell discards it. the -exec option has to have and "end" which is defined by the ; character