/usr/lib/postgresql/9.4/bin/clusterdb
/usr/lib/postgresql/9.4/bin/createdb
/usr/lib/postgresql/9.4/bin/createlang
/usr/lib/postgresql/9.4/bin/createuser
/usr/lib/postgresql/9.4/bin/dropdb
/usr/lib/postgresql/9.4/bin/droplang
/usr/lib/postgresql/9.4/bin/dropuser
/usr/lib/postgresql/9.4/bin/pg_basebackup
/usr/lib/postgresql/9.4/bin/pg_dumpall
/usr/lib/postgresql/9.4/bin/pg_dump
/usr/lib/postgresql/9.4/bin/pg_isready
/usr/lib/postgresql/9.4/bin/pg_receivexlog
/usr/lib/postgresql/9.4/bin/pg_recvlogical
/usr/lib/postgresql/9.4/bin/pg_restore
/usr/lib/postgresql/9.4/bin/psql
/usr/lib/postgresql/9.4/bin/reindexdb
/usr/lib/postgresql/9.4/bin/vacuumdb
You may install this package on Debian with
apt-get
install postgresql-client-9.4