C-file-operations-APIs

API name	API description
fopen	open a stream
fdopen	associate a stream with a file descriptor
freopen	open a stream
fclose	close a stream
fmemopen	open a memory buffer stream
fflush	flush a stream
fcloseall	close all open streams
fseek	reposition a stream
ftell	return a file offset in a stream
rewind	reset the file position indicator in a stream
fgetpos	get current file position information
fsetpos	set current file position
fprintf	print formatted output
fscanf	convert formatted input
printf	print formatted output
fprintf	print formatted output
dprintf	print formatted output
sprintf	print formatted output
snprintf	print formatted output
vprintf	format the output of a stdarg argument list
vfprintf	format output of a stdarg argument list
vdprintf	format output of a stdarg argument list
vsprintf	format output of a stdarg argument list
vsnprintf	format output of a stdarg argument list
fgetc	get a byte from a stream
fgets	get a string from a stream
fputc	put a byte on a stream
fputs	put a string on a stream
getc	get a byte from a stream
getchar	get a byte from a stdin stream
ungetc	push byte back into input stream
putc	put a byte on a stream
putchar	put a byte on a stdout stream
puts	put a string on standard output