paste
       paste [ -d[list] ]  [-]file_list
       paste -s [ -d[list ]  file_list
 

Options
 
-

 
-dlist
\n A newline
\t A tab
\\ A backslash;
\0 No character at all.
Same as -d
without a list. But may be used in multi- character list. Does not actually place a character on the output.
 
-s
 

Arguments

file_list One or more files read and displayed in the appropriate format.