Efuns, the most vital part of any lpmud

These are the available efuns:
add_action - add an action to an object
add_verb - add a verb to an action
all_inventory - return the contents of an object
all_inventory - return the contents of an object
allocate - create an array of n elements
call_other - call a function in another object
call_out - delayed execution of a function
call_out_info - get info on all pending call outs
capitalize - make the first letter of a string uppercase
cat - print part of a file on the screen
catch - catch errors
cindent - indent and format an LPC program source file
clear_bit - clear a bit in a string bitfield
clone_object - clone an object
command - execute a command in a living object
crypt - encrypt a string
ctime - convert time stamp to string
debug_info - Print some internal information
deep_inventory - recursive inventory of an object
destruct - destruct an object
disable_commands - set an object `non-living'
ed - edit a file
enable_commands - set an to be object `living'
environment - find the environment of an object
exec - connect a socket to a new object
explode - explode a string into subparts
export_euid - Export this objects euid to another objects uid
extract - extract a subpart of a string
file_name - find the filename of an object
file_size - return the size of a file
filter_array - filter an array through a seive
filter_mapping - filter a mapping over a function
find_call_out - find the remaining call_out time of a function
find_living - find a named living object
find_object - find a named object
find_player - find a named player
first_inventory - get the first object in an inventory
function_exists - find out if a named function is defined in an
get_dir - return an array of filenames in a directory
get_euid - Get the euid from an object
get_uid - Get the uid from an object.
implode - concatenate an array of strings
inherit_list - return a list of all inherited objects of an object
input_to - redirect keyboard input to a function
interactive - determine if an object is interactive or not
intp - determine if a variable is of type int
living - determine if an object is living
log_file - log a message at the end of a file
lower_case - decapitalize a string
m_delete - delete an index from a mapping
m_indices - return the indices from a mapping
m_sizeof - return the size of a mapping
m_values - return the values from a mapping
map_array - map an array over a function
map_mapping - map a mapping over a function
mappingp - check if a value is a mapping
member_array - find the position of an element in an array
mkdir - make a directory
mkmapping - make a mapping of two arrays
move_object - move an object somewhere
next_inventory - get the next object in an inventory
notify_fail - give a message to be printed if all commands failed
objectp - true if the value of a variable is an object
parse_command - try to match a string with a given pattern
pointerp - determine if the value of a variable is an array
present - find a present object through its id() function
previous_object - give object that called current object
process_string - give a string with replaced calldescriptions
query_host_name - give the hostname that the gamedriver is running on
query_idle - give time since last command from a player
query_ip_name - give the hostname from which a player is connected
query_ip_number - give the ip number for a player
query_load_average - give a load average status message
query_snoop - check what object is snooping a given object
query_verb - give the currently active verb
random - give a random value
read_bytes - read text from a given position in a file
read_file - read lines from a file, there is a maximum limit
regexp - match a regular expression
remove_call_out - remove a named, pending call_out for current object
restore_object - load global variables in current object from file
rm - remove a file
rmdir - remove an empty directory
save_object - save global variables in current object to a file
say - proclaim a message to a room.
set_bit - set a specific bit in a bitfield
set_euid - Set the euid of this object.
set_heart_beat - turn the heart beat calling on/off in current object
set_light - make an object shine like a torch
set_living_name - set the searchable name for a living object
shadow - let the current object shadow another object or find a shadow
shout - exclaim a message to all players
shutdown - shut down the gamedriver
sizeof - give the size of an array
slice_array - cut out a piece from an array
snoop - let one player snoop another
sort_array - sort an array through a specific sort function
sscanf - Parse a string with a given format
stringp - true if a given variables value is currently a string
strlen - give the length of a string
tail - print the last lines of a file
tell_object - send message to a specific living object
tell_room - give a message to all objects in a room
test_bit - test a given bit in a bitfield
this_object - give the object pointer to the executing object
this_player - give the current player
throw - cause an execution to terminate with an error
time - give the current time
trace - let a player get trace information
traceprefix - set the prefix for objects printed during a trace
unique_array - Sort an array into arrays of unique groups
users - give an array of the current players
version - give the version of the gamedriver
wizlist - print some statistics on wizards
write - write data (normally text) to the current player
write_bytes - write chars in a given position in a file
write_file - append text to a file