# pcb-rnd conf tree

## subtree: rc

node name | type | flags | description
verbose | integer | 0 | <verbose>
quiet | integer | 0 | print only errors on stderr
backup_interval | integer | 0 | time between two backups in seconds; 0 means disabled (no backups)
brave | string | 0 | brave mode flags: when non-empty, enable various experimental (unstable) features - useful for testers
font_command | string | 0 | file name template; if not empty, run this command and read its output for loading the font; %f is the file name
file_command | string | 0 | file name template; if not empty, run this command and read its output for loading a pcb file; %f is the file name, %p is the conf setting rc.file_path
file_path | string | 0 | <file_path>
library_shell | string | 0 | <library_shell>
library_search_paths | list | 0 | <library_search_paths>
emergency_name | string | 0 | file name template for emergency save anonymous .pcb files (when pcb-rnd crashes); optional field: %ld --> pid; must be shorter than 240 characters. Don't do emergency save if this item is empty.
emergency_format | string | 0 | if set, use this format for the backups; if unset, use the default format
backup_name | string | 0 | file name template for periodic backup anonymous .pcb files; optional fields: %P --> pid
backup_format | string | 0 | if set, use this format for the backups; if unset or set to 'original', use the original format
save_command | string | 0 | command to pipe the pcb, footprint or buffer file into, when saving (makes lihata persist impossible)
keep_save_backups | boolean | 0 | a copy is made before a save operation overwrites an existing file; if this setting is true, keep the copy even after a successful save
default_font_file | list | 0 | name of default font file (list of names to search)
default_pcb_file | list | 0 | <default_pcb_file>
script_filename | string | 0 | PCB Actions script to execute on startup
action_string | string | 0 | PCB Actions string to execute on startup
rat_path | string | 0 | <rat_path>
rat_command | string | 0 | file name template; if not empty, run this command and read its output for loading a rats; %f is the file name, %p is the rc.rat_path conf setting
preferred_gui | list | 0 | if set, try GUI HIDs in this order when no GUI is explicitly selected
save_final_fallback_fmt | string | 0 | when a new file is created (by running pcb-rnd with the file name) there won't be a known format; pcb-rnd will guess from the file name (extension) but eventhat may fail. This format is the final fallback that'll be used if no other guessing mechanism worked. The user can override this by save as.
save_fp_fmt | string | 0 | when saving a buffer element/subcircuit, prefer this format by default
have_regex | boolean | 0 | whether we have regex compiled in