searching in c

[georges the man]

how do i search for data in a file using c.
ie:
for a certain date find the values.

i am using linux...

[pukur123]

Give the description of the problem in details. I couldn't make anything from the your description. So be clear about the problem.

[georges the man]

sorry,
i have to write a program in c.
first i have to sort the data in a csv file according to dates.
than searching for a certain price according to a specific date entered by the user, than outputting the price.