When I use psql, the command line tool of PostgreSQL, in interactive mode, it lists data as paginated output.
However, because I use psql
For completeness we might mention that for a one-off or to use as a setting in one of your scripts... (and as mentioned by "mu", see the psql --help (manual))
As a command in a script
psql --pset=pager-off -c "
"
From your commandline
psql --pset=pager=off
This would be in effect for the single command only so it is most useful in a script.
You can use this method in lieu of making temporary changes within the psql utility or permanent settings via the init file (~/.psqlrc).