How to run knowrob without shell but using prolog language?

edit

If I want to load knowrob system to run prolog src to do the following thing:

  owl_parser:owl_parse('/home/sam/code/ros/ai/owl/sam_world.owl', false, false, true).

How to run knowrob just loading pl file without login to a shell?

Thank you~

I follow @Lorenz answer.

I create ros package: sam_knowrob_test

my init.pl

  register_ros_package(mod_vis).
  register_ros_package(ias_semantic_map).
  visualisation_canvas(C).

I run rosrun command,but it couldn't show Semantic map:

  sam@sam:~/code/ros/ai$ rosrun rosprolog rosprolog sam_knowrob_test
  % library(swi_hooks) compiled into pce_swi_hooks 0.00 sec, 3,616 bytes
  %     library(error) compiled into error 0.00 sec, 17,688 bytes
  %    library(lists) compiled into lists 0.01 sec, 41,424 bytes
  %   library(shlib) compiled into shlib 0.01 sec, 62,200 bytes
  %   library(option) compiled into swi_option 0.00 sec, 15,080 bytes
  %  library(process) compiled into process 0.01 sec, 93,400 bytes
  % /opt/ros/electric/stacks/knowrob/rosprolog/prolog/init.pl compiled 0.01 sec, 100,848 bytes
  Warning: /home/sam/code/ros/ai/knowrob/sam_knowrob_test/prolog/init.pl:1:
    Redefined static procedure register_ros_package/1
  Warning: /home/sam/code/ros/ai/knowrob/sam_knowrob_test/prolog/init.pl:3:
    Singleton variables: [C]
  % /home/sam/code/ros/ai/knowrob/sam_knowrob_test/prolog/init.pl compiled 0.00 sec, 960 bytes
  ?-

It also show warning:

 Singleton variables: [C]

I try to run by input but nothing happened:

  ?- register_ros_package(mod_vis).
  true .

  ?- register_ros_package(ias_semantic_map).
  true.

  ?- visualisation_canvas(C).
  true.

  ?-

Why it couldn't show semantic map?

How to fixed it?

Thank you~

  sam@sam:~/code/ros/ai$ rosrun rosprolog rosprolog sam_knowrob_test
  % library(swi_hooks) compiled into pce_swi_hooks 0.00 sec, 3,616 bytes
  %     library(error) compiled into error 0.00 sec, 17,688 bytes
  %    library(lists) compiled into lists 0.00 sec, 41,424 bytes
  %   library(shlib) compiled into shlib 0.00 sec, 62,200 bytes
  %   library(option) compiled into swi_option 0.01 sec, 15,080 bytes
  %  library(process) compiled into process 0.01 sec, 93,400 bytes
  % /opt/ros/electric/stacks/knowrob/rosprolog/prolog/init.pl compiled 0.01 sec, 100,848 bytes
  %     library(jpl) compiled into jpl 0.02 sec, 285,496 bytes
  %         library(sgml) compiled into sgml 0.01 sec, 38,464 bytes
  %           library(quintus) compiled into quintus 0.00 sec, 21,384 bytes
  %          rewrite compiled into rewrite 0.00 sec, 34,736 bytes
  %          library(uri) compiled into uri 0.00 sec, 10,880 bytes
  %          library(record) compiled into record 0.00 sec, 31,072 bytes
  %         rdf_parser compiled into rdf_parser 0.01 sec, 145,344 bytes
  %          library(gensym) compiled into gensym 0.00 sec, 4,432 bytes
  %         rdf_triple compiled into rdf_triple 0.00 sec, 37,168 bytes
  %        library(rdf) compiled into rdf 0.02 sec, 271,184 bytes
  %         library(debug) compiled into prolog_debug 0.00 sec, 21,320 bytes
  %         library(assoc) compiled into assoc 0.00 sec, 22,640 bytes
  %        library(sgml_write) compiled into sgml_write 0.01 sec, 105,192 bytes
  %        library(nb_set) compiled into nb_set 0.00 sec, 5,968 bytes
  %         library(utf8) compiled into utf8 0.00 sec ...