v7 man page for paste

PASTE(1)                                                           User Commands                                                          PASTE(1)

NAME
       paste - merge lines of files

SYNOPSIS
       paste [OPTION]... [FILE]...

DESCRIPTION
       Write lines consisting of the sequentially corresponding lines from each FILE, separated by TABs, to standard output.

       With no FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -d, --delimiters=LIST
              reuse characters from LIST instead of TABs

       -s, --serial
              paste one file at a time instead of in parallel

       -z, --zero-terminated
              line delimiter is NUL, not newline

       --help display this help and exit

       --version
              output version information and exit

AUTHOR
       Written by David M. Ihnat and David MacKenzie.

REPORTING BUGS
       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report paste translation bugs to <http://translationproject.org/team/>

COPYRIGHT
       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       Full documentation at: <http://www.gnu.org/software/coreutils/paste>
       or available locally via: info '(coreutils) paste invocation'

GNU coreutils 8.28                                                 January 2018                                                           PASTE(1)