To read from a file it must be opened for reading using fopen
.
Then a line can be read from the file using fgetl
as the following
code illustrates
fid = fopen ("free.txt"); txt = fgetl (fid) -| Free Software is needed for Free Science fclose (fid);
This of course assumes that the file ‘free.txt’ exists and contains the line ‘Free Software is needed for Free Science’.
Read characters from a file, stopping after a newline, or EOF, or len characters have been read. The characters read, excluding the possible trailing newline, are returned as a string.
If len is omitted,
fgetl
reads until the next newline character.If there are no more characters to read,
fgetl
returns −1.
Read characters from a file, stopping after a newline, or EOF, or len characters have been read. The characters read, including the possible trailing newline, are returned as a string.
If len is omitted,
fgets
reads until the next newline character.If there are no more characters to read,
fgets
returns −1.
Skip a given number of lines, i.e., discards characters until an end-of-line is met exactly count-times, or end-of-file occurs. Returns the number of lines skipped (end-of-line sequences encountered). If count is omitted, it defaults to 1. count may also be
Inf
, in which case lines are skipped to the end of file. This form is suitable for counting lines in a file.