Print strings using the specified formats. formats can be ordinary text characters, C-language escape characters, C format specifications ending with one of the letters diouxXfeEgGcs or, more commonly, a set of conversion arguments listed here.
Print usage information and exit.
Print version information and exit.
Print a single %.
Print string with \ escapes interpreted.
Print the next string.
Print the nth string.
Print the next string, using a field that is m characters wide. Optionally, limit the field to print only the first n characters of string. Strings are right-adjusted unless the left-adjustment flag, -, is specified.
printf '%s %s\n' "My files are in" $HOME
printf '%-25.15s %s\n' "My files are in" $HOME