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

Try something like this:

# Iterating through the provided arguments
for ARG in $*; do
    if [ -f filename_$ARG.txt]; then
        grep "$str" filename_$ARG.txt 
    fi
done