search alrgorithm

dear all,

I am having problem writing a shell script to search datas in one file.

example of data stored in home/david/database.txt

database.txt:
------------
index name sex country
1 david m canada
2 cyntia f england

i wish to have a script to ask for user input, example:

pls enter name: david
name=david, what u want to search for david: country
ur search result:david, canada

Can any one help on this?

Is this homework? Please do not ask us to do your homework for you. Here's a hint.. check the man page of grep.