Print line fragments according to the format string min. max, where min is the minimum field width and max the maximum field width. If min begins with a zero, zeros will be added to make up the field width, and if it begins with a -, the fragment will be left-adjusted within the field.
-p min. max
Like -f , but pad this files field when end-of-file is reached and other files are still active.
Print sepstring before printing line fragments from the next file. This option may appear after the last file.
The input line terminator is c instead of a newline. The newline normally appended to each output line is omitted.
To print files simultaneously for easy viewing use pr(1).