How to iterate over positional parameters in a Bash script?

Question

Where am I going wrong?

I have some files as follows:

filename_tau.txt
filename_xhpl.txt
filename_fft.txt
filename_PMB_MPI.txt
filename_mpi_tile_io.txt         


        

Answer 1

Set up your for loop like this. With this syntax, the loop iterates over the positional parameters, assigning each one to 'point' in turn.

for point; do
  grep "$str" ${filename}${point}.txt 
done