input variable when running bash within MATLAB

I am running some bash commands in a MATLAB function in order to process a text file before some analysis in MATLAB. I do not know how to take the name of the input file and use it within the bash command. What I mean is the following:

function [tt,value]=readfile(filename.txt,type); !grep TEXT filename.txt > FOO . . .

how can I use filename.txt as an input into the bash command?

Many thanks, CO

Answer 1

[Jan]

function [tt,value] = readfile(FileName, type);
system(['grep TEXT ', FileName, ' > FOO . . .'])

Now call this as:

[tt, value] = readfile('filename.txt', type)

or

FileName = 'filename.txt';
[tt, value] = readfile(FileName, type)

Please consider that type is a builtin Matlab command, such that its name should be avoided for user-defined variables.