MATLAB Programming

6 Data Import and Export
The act of reading advances the file position indicator. To determine the
current file position indicator, call ftell:
position = ftell(fid)
position =
8
This call to fseek moves the file position indicator back 4 bytes:
status = fseek(fid,-4,'cof');
Calling fread again reads in the next value (3):
three = fread(fid,1,'short');
ReadingStringsLinebyLinefromTextFiles
MATLAB provides two functions, fgetl and fgets, that read lines from
formatted text files and store them in string vectors. The two functions are
almost identical; the only difference is that fgets copies the newline character
to the string vector but fgetl does not.
The following M-file function demonstrates a possible use of fgetl. This
function uses fgetl to read an entire file one line at a time. For each line,
the function determines whether an input literal string (literal) appearsin
the line.
If it does, the function prints the entire line preceded by the number of times
the literal string appears on the line.
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