Definition and functionality of all functions of node. JS FS

Table 4-1 FS module function table

Function	Async methods	Synchronization method
Open File	Fs.open (Path,flags, [mode], [Callback (Err, FD)])	Fs.opensync (path, flags, [mode])
Close File	Fs.close (FD, [Callback (ERR)])	Fs.closesync (FD)
Read file (file descriptor	) Fs.read (Fd,buffer,offset,length,position, [Callback (Err, bytesread, buffer)])	Fs.readsync (fd, buffer, offset, length, position)
Write file (file descriptor)	Fs.write (Fd,buffer,offset,length,position, [Callback (Err, Byteswritten, buffer)])	Fs.writesync (fd, buffer, offset, length, position)
Read File contents	Fs.readfile (Filename,[encoding],[callback (err, data)])	Fs.readfilesync (filename, [encoding])
Write file contents	Fs.writefile (filename, data,[encoding], [Callback (ERR)])	Fs.writefilesync (filename, data, [encoding])
Deleting Files	Fs.unlink (Path, [Callback (ERR)])	Fs.unlinksync (PATH)
Create a directory	Fs.mkdir (path, [mode], [Callback (ERR)])	Fs.mkdirsync (path, [mode])
Delete directory	Fs.rmdir (Path, [Callback (ERR)])	Fs.rmdirsync (PATH)
Read Directory	Fs.readdir (Path, [Callback (Err, files)])	Fs.readdirsync (PATH)
Get the real path	Fs.realpath (Path, [Callback (Err, Resolvedpath)])	Fs.realpathsync (PATH)
renamed	Fs.rename (path1, path2, [Callback (ERR)])	Fs.renamesync (path1, path2)
truncate	Fs.truncate (FD, Len, [Callback (ERR)]) Fs.truncatesync (FD, Len)
Change Ownership	Fs.chown (path, UID, GID, [Callback (ERR)])	Fs.chownsync (path, UID, GID)
Change ownership (file descriptor)	Fs.fchown (FD, UID, GID, [Callback (ERR)])	Fs.fchownsync (FD, UID, GID)
Change ownership (do not parse symbolic links)	Fs.lchown (path, UID, GID, [Callback (ERR)])	Fs.lchownsync (path, UID, GID)
Change permissions	Fs.chmod (path, mode, [Callback (ERR)])	Fs.chmodsync (path, mode)
Change permissions (file descriptors)	Fs.fchmod (fd, Mode, [Callback (ERR)])	Fs.fchmodsync (FD, mode)
Change permissions (do not parse symbolic links)	Fs.lchmod (path, mode, [Callback (ERR)])	Fs.lchmodsync (path, mode)
Get file Information	Fs.stat (Path, [Callback (err, stats)])	Fs.statsync (PATH)
Get file information (file descriptor)	Fs.fstat (FD, [Callback (err, stats)])	Fs.fstatsync (FD)
Get file information (do not parse symbolic links)	Fs.lstat (Path, [Callback (err, stats)])	Fs.lstatsync (PATH)
Create a hard link	Fs.link (Srcpath, Dstpath, [Callback (ERR)])	Fs.linksync (Srcpath, Dstpath)
Creating Symbolic Links	Fs.symlink (linkdata, path, [type], [Callback (ERR)])	Fs.symlinksync (linkdata, path, [type])
Read Link	Fs.readlink (Path, [Callback (Err, linkstring)])	Fs.readlinksync (PATH)
Modify File timestamp	Fs.utimes (Path, Atime, Mtime, [Callback (ERR)])	Fs.utimessync (Path, atime, Mtime)
Modify file timestamp (file descriptor)	Fs.futimes (FD, Atime, Mtime, [Callback (ERR)])	Fs.futimessync (FD, Atime, Mtime)
Synchronizing disk caches	Fs.fsync (FD, [Callback (ERR)])	Fs.fsyncsync (FD)