P(1)P(1)NAMEp - paginate
SYNOPSISp [ -number ] [ file ... ]
P copies its standard input, or the named files if given, to its stan‐
dard output, stopping at the end of every 22nd line, and between files,
to wait for a newline from the user. The option sets the number of
lines on a page.
While waiting for a newline, p interprets the commands:
! Pass the rest of the line to the shell as a command.