Assume that you need to edit a network configuration file but you can$$t remember it$$s name. You

know that it ends with $.$dat and you know that it$$s in the $/$etc$/$sys$/$net directory. You also know

that the string "NETMASK" is somewhere in the file. Write the command$($s$)$ you would type to display all

of the lines of text containing the string $$NETMASK$$ in all of the files ending with $.$dat in the

$/$etc$/$sys$/$net directory. Note $$ enter the command without any command options but include the

necessary arguments