постраничная основа (by-page basis)
Описание (Description)
The more utility shall read files and either write them to the
terminal on a page-by-page basis or filter them to standard
output. If standard output is not a terminal device, all input
files shall be copied to standard output in their entirety,
without modification, except as specified for the -s option. If
standard output is a terminal device, the files shall be written
a number of lines (one screenful) at a time under the control of
user commands. See the EXTENDED DESCRIPTION section.
Certain block-mode terminals do not have all the capabilities
necessary to support the complete more definition; they are
incapable of accepting commands that are not terminated with a
<newline>. Implementations that support such terminals shall
provide an operating mode to more in which all commands can be
terminated with a <newline> on those terminals. This mode:
* Shall be documented in the system documentation
* Shall, at invocation, inform the user of the terminal
deficiency that requires the <newline> usage and provide
instructions on how this warning can be suppressed in future
invocations
* Shall not be required for implementations supporting only
fully capable terminals
* Shall not affect commands already requiring <newline>
characters
* Shall not affect users on the capable terminals from using
more as described in this volume of POSIX.1‐2017
