home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
AmigActive 24
/
AACD 24.iso
/
AACD
/
Online
/
Epic4
/
share
/
epic
/
help
/
6_functions
/
read
< prev
next >
Wrap
Text File
|
2001-03-21
|
953b
|
28 lines
Synopsis:
$read(<fd> [<length>])
Technical:
This function is used to read data from a file pointed to by the given
file descriptor. The file descriptor is returned when the file is
opened for reading with the $open() function. If a second argument is
passed, that many bytes are read and returned; otherwise, it reads up
to the next newline.
Practical:
This function is the general-purpose interface to reading file contents.
The normal usage is to just read a file line by line. However, since
you can also read an arbitrary number of bytes, it can also be used to
read binary files (finding a use for this is left as an exercise for the
user).
Returns:
data read from file, or nothing on error
Examples:
$read(4) returns next line from fd 4
$read(4 30) returns next 30 bytes from fd 4
See Also:
close(6); open(6); randread(6)