# Functions
Chdir changes the current working directory to the named directory.
Create creates the named file mode 0666 (before umask), truncating it if it already exists.
Mkdir creates a new directory with the specified name and permission bits.
Open opens the named file for reading.
Rename renames (moves) a file.
# Constants
append data to the file when writing.
create a new file if none exists.
used with O_CREATE, file must not exist.
open the file read-only.
open the file read-write.
open for synchronous I/O.
if possible, truncate file when opened.
open the file write-only.
seek relative to the current offset.
seek relative to the end.
seek relative to the origin of the file.
# Variables
Stdin, Stdout, and Stderr are open Files pointing to the standard input, standard output, and standard error file descriptors.
Stdin, Stdout, and Stderr are open Files pointing to the standard input, standard output, and standard error file descriptors.
Stdin, Stdout, and Stderr are open Files pointing to the standard input, standard output, and standard error file descriptors.