diff --git a/asciicasts/create-and-open-directories.cast b/asciicasts/create_and_open_directories.cast similarity index 100% rename from asciicasts/create-and-open-directories.cast rename to asciicasts/create_and_open_directories.cast diff --git a/asciicasts/create-and-open-files.cast b/asciicasts/create_and_open_files.cast similarity index 100% rename from asciicasts/create-and-open-files.cast rename to asciicasts/create_and_open_files.cast diff --git a/asciicasts/create-and-open-files-and-directories.cast b/asciicasts/create_and_open_files_and_directories.cast similarity index 100% rename from asciicasts/create-and-open-files-and-directories.cast rename to asciicasts/create_and_open_files_and_directories.cast diff --git a/asciicasts/create-behaviour.cast b/asciicasts/create_behaviour.cast similarity index 100% rename from asciicasts/create-behaviour.cast rename to asciicasts/create_behaviour.cast diff --git a/asciicasts/create-default-behaviour.cast b/asciicasts/create_default_behaviour.cast similarity index 100% rename from asciicasts/create-default-behaviour.cast rename to asciicasts/create_default_behaviour.cast diff --git a/asciicasts/editor-behaviour.cast b/asciicasts/editor_behaviour.cast similarity index 100% rename from asciicasts/editor-behaviour.cast rename to asciicasts/editor_behaviour.cast diff --git a/asciicasts/editor-prompt.cast b/asciicasts/editor_prompt.cast similarity index 100% rename from asciicasts/editor-prompt.cast rename to asciicasts/editor_prompt.cast diff --git a/asciicasts/enter-skip-single-subdirectory.cast b/asciicasts/enter_skip_single_subdirectory.cast similarity index 100% rename from asciicasts/enter-skip-single-subdirectory.cast rename to asciicasts/enter_skip_single_subdirectory.cast diff --git a/asciicasts/leave-skip-single-subdirectory.cast b/asciicasts/leave_skip_single_subdirectory.cast similarity index 100% rename from asciicasts/leave-skip-single-subdirectory.cast rename to asciicasts/leave_skip_single_subdirectory.cast diff --git a/asciicasts/open-auto-extract-archives.cast b/asciicasts/open_auto_extract_archives.cast similarity index 100% rename from asciicasts/open-auto-extract-archives.cast rename to asciicasts/open_auto_extract_archives.cast diff --git a/asciicasts/open-behaviour.cast b/asciicasts/open_behaviour.cast similarity index 100% rename from asciicasts/open-behaviour.cast rename to asciicasts/open_behaviour.cast diff --git a/asciicasts/open-prompt.cast b/asciicasts/open_prompt.cast similarity index 100% rename from asciicasts/open-prompt.cast rename to asciicasts/open_prompt.cast diff --git a/asciicasts/open-recursively-extract-archives.cast b/asciicasts/open_recursively_extract_archives.cast similarity index 100% rename from asciicasts/open-recursively-extract-archives.cast rename to asciicasts/open_recursively_extract_archives.cast diff --git a/asciicasts/pager-behaviour.cast b/asciicasts/pager_behaviour.cast similarity index 100% rename from asciicasts/pager-behaviour.cast rename to asciicasts/pager_behaviour.cast diff --git a/asciicasts/pager-prompt.cast b/asciicasts/pager_prompt.cast similarity index 100% rename from asciicasts/pager-prompt.cast rename to asciicasts/pager_prompt.cast diff --git a/asciicasts/parent-arrow.cast b/asciicasts/parent_arrow.cast similarity index 100% rename from asciicasts/parent-arrow.cast rename to asciicasts/parent_arrow.cast diff --git a/asciicasts/remove-behaviour.cast b/asciicasts/remove_behaviour.cast similarity index 100% rename from asciicasts/remove-behaviour.cast rename to asciicasts/remove_behaviour.cast diff --git a/asciicasts/remove-prompt.cast b/asciicasts/remove_prompt.cast similarity index 100% rename from asciicasts/remove-prompt.cast rename to asciicasts/remove_prompt.cast diff --git a/asciicasts/rename-behaviour.cast b/asciicasts/rename_behaviour.cast similarity index 100% rename from asciicasts/rename-behaviour.cast rename to asciicasts/rename_behaviour.cast diff --git a/asciicasts/rename-prompt.cast b/asciicasts/rename_prompt.cast similarity index 100% rename from asciicasts/rename-prompt.cast rename to asciicasts/rename_prompt.cast diff --git a/asciicasts/shell-behaviour.cast b/asciicasts/shell_behaviour.cast similarity index 100% rename from asciicasts/shell-behaviour.cast rename to asciicasts/shell_behaviour.cast diff --git a/asciicasts/shell-prompt.cast b/asciicasts/shell_prompt.cast similarity index 100% rename from asciicasts/shell-prompt.cast rename to asciicasts/shell_prompt.cast diff --git a/asciicasts/smart-enter.cast b/asciicasts/smart_enter.cast similarity index 100% rename from asciicasts/smart-enter.cast rename to asciicasts/smart_enter.cast diff --git a/asciicasts/smart-paste.cast b/asciicasts/smart_paste.cast similarity index 100% rename from asciicasts/smart-paste.cast rename to asciicasts/smart_paste.cast diff --git a/asciicasts/smart-tab-create.cast b/asciicasts/smart_tab_create.cast similarity index 100% rename from asciicasts/smart-tab-create.cast rename to asciicasts/smart_tab_create.cast diff --git a/asciicasts/smart-tab-switch.cast b/asciicasts/smart_tab_switch.cast similarity index 100% rename from asciicasts/smart-tab-switch.cast rename to asciicasts/smart_tab_switch.cast diff --git a/asciicasts/wraparound-arrow.cast b/asciicasts/wraparound_arrow.cast similarity index 100% rename from asciicasts/wraparound-arrow.cast rename to asciicasts/wraparound_arrow.cast diff --git a/asciicasts/wraparound-parent-arrow.cast b/asciicasts/wraparound_parent_arrow.cast similarity index 100% rename from asciicasts/wraparound-parent-arrow.cast rename to asciicasts/wraparound_parent_arrow.cast