FilePrint
FilePrint["file"] prints out the raw textual contents of file.
FilePrint["file",n] prints out the first n raw textual lines of file.
FilePrint["file",-n] prints out the last n raw textual lines of file.
FilePrint["file",m;;n] prints out lines m through n of file.
FilePrint["file",m;;n;;s] prints out lines m through n of file in steps of s.
Please visit the official Wolfram Language Reference for more details and examples on core symbols.