|MATLAB Function Reference|
Find a string within another, longer string
k = findstr( searches the longer of the two input strings for any occurrences of the shorter string, returning the starting index of each such occurrence in the double array,
k. If no occurrencs are found, then
findstr returns the empty array,
The search performed by
findstr is case sensitive. Any leading and trailing blanks in either input string are explicitly included in the comparison.
strfind function, the order of the input arguments to
findstr is not important. This can be useful if you are not certain which of the two input strings is the longer one.