A list of Autocad commands in post form as well as downloadable pdf. Get up to date CAD Tutorials, Tech Reviews and News. PDF List of AutoCAD Commands. June, 2015 March, 2018 Brandon. VLISP Displays the Visual LISP interactive development environment (IDE).
An alphabetic list of AutoLISP functions.
Symbol
(*error* <STRING>)
User-definable error function.
(+ <NUMBER> <NUMBER> ...)
Returns the sum of two or more numbers.
(- <NUMBER> <NUMBER> ...)
Returns the difference of two or more numbers.
(* <NUMBER> <NUMBER> ...)
Returns the product of two or more numbers.
(/ <NUMBER> <NUMBER> ...)
Returns the quotient of two or more numbers.
(= <NUMBER> <NUMBER> ...)
Returns T if the numbers are equal, nil if not.
(/= <NUMB1> <NUMB2>)
Returns T if the numbers are not equal, nil if they are.
(< <NUMB1> <NUMB2>)
Returns T if <NUMB1> is less than <NUMB2>.
(<= <NUMB1> <NUMB2>)
Returns T if <NUMB1> is equal to or less than <NUMB2>.
(> <NUMB1> <NUMB2>)
Returns T if <NUMB1>is greater than <NUMB2>.
(>= <NUMB1> <NUMB2>)
Returns T if <NUMB1> is equal to or greater than <NUMB2>.
(~ <NUMBER>)
Returns the bitwise of <NUMBER>.
(1+ <NUMBER>)
Returns the <NUMBER> increased by one.
(1- <NUMBER>)
Returns the <NUMBER> decreased by one.
A
(abs <NUMBER>)
Returns the absolute value of <NUMBER>.
(and <EXPR> ...)
Returns the logical AND of a list of expressions. Returns nil if expressions are nil.
(angle <PT1> <PT2>)
Returns the angle in radians between two points.
(angtos <ANGLE>[<MODE><PRECIS.>])
Returns the angle as a string. Mode 0=Degrees,1=Deg Min Sec, 2=Grads,3=Radians,4=Surveyor
(append <EXPR> ....)
Returns a number of lists as one list.
(apply <FUNCTION> <LIST>)
Executes function with the arguments given as a list.
(ascii <STRING>)
Returns ascii value of first character of a string.
(assoc <ITEM><ALIST>)
Searches <ALIST> for <ITEM>.
(atan <NUM1> [<NUM2>])
Returns the arctangent of <NUM1> or <NUM1>/<NUM2>.
(atof <STRING>)
Returns the conversion of a string into a real.
(atoi <STRING>)
Returns the conversion of a string into an integer.
(atom <ITEM>)
Returns T if <ITEM> is not a list.
B
(Boole <FUNC> <NUMB1> <NUMB2)
Returns Boolean bitwise truth comparisons. <NUMB>'s must be integers.
(boundp <ATOM>)
Returns T if <ATOM> has a value bound to it.
C
(car <LIST>)
Returns the first element of a list.
(caar <LIST>)
Returns first element of the first element of a list.
(cadar <LIST>)
Returns last element of the first element of a list.
(cadr <LIST>)
Returns the second element of a list.
(caddr <LIST>)
Returns the third element of a list.
(cdr <LIST>)
Returns all but the first element of a list.
(cdar <LIST>)
Returns second element of the first element of list.
(cddr <LIST>)
Returns all but first element of last element list.
(chr <NUMBER>)
Returns the string represented by an ascii value.
(close <FILENAME>)
Closes a file.
(command <ARGS>...)
Executes an AutoCAD command.
(cond (<TEST1><RESULT1>)...)
Evaluates any number of lists as arguments.
(cons <NEW FIRST ELEMENT><LIST>)
Contructs a new list.
(cos <ANGLE>)
Returns the cosine of an angle.
D
(defun <SYM><ARG LIST><EXPR>...)
Defines an AutoLISP function.
(distance <PT1> <PT2>)
Returns the distance between two points.
E
(entnext [<ENAME>])
Returns the first non-deleted entity after <ENAME>.
(entlast)
Returns the last non-deleted entity in the database.
(entsel [<PROMPT>])
Selects a single entity by a point pick.
(entdel <ENAME>)
Deletes the entity <ENAME> or undeletes it if it
has already been deleted.
(entget <ENAME>)
Returns <ENAME> from the database as a list.
(entmod <ENAME>)
Updates <ENAME> in the database. NOT for blocks or polylines
(entupd <ENAME>)
Updates <ENAME> in the database. Use for polylines or blocks.
(eq <EXPR1> <EXPR2>)
Returns T if expressions are bound to same object.
(equal <EXPR1> <EXPR2>)
Returns T if the expressions are equal.
(eval <EXPR>)
Evalutes an expression.
(exp <NUMBER>)
Returns E to the power <NUMBER>.
(expt <BASE> <NUMBER>)
Returns <BASE> to the power <NUMBER>.
F
(findfile <FILENAME>)
Searches all paths to find <FILENAME>.
(fix <NUMBER>)
Converts <NUMBER> to an integer.
(float <NUMBER>)
Converts <NUMBER> to a real.
(foreach <NAME><LIST><EXPR>)
Evaluates <EXPR> for each element in the <LIST> and assigns to <NAME>.
G
(gcd <NUM1> <NUM2>)
Returns the greatest common denominator.
(getangle [<PT>][<PROMPT>])
Pauses for input of an angle at optional starting point <PT>.
(getcorner [<PT>][<PROMPT>])
Getpoint function - draws triangle as crosshairs move.
(getdist [<PT>][<PROMPT>])
Pauses for input of distance at optional start point.
(getenv [<VARIABLE>])
Returns string value assigned to a system variable.
(getkword [<PROMPT>])
Requests a keyword from the user.
(getorient [<PT>][<PROMPT>])
Returns angle in radians from current orientation.
(getpoint [<PT>][<PROMPT>])
Pauses for input of an angle at optional point <PT>.
(getreal [<PROMPT>])
Pauses for input of a real number.
(getstring [<CR>][<PROMPT>])
Pauses for input of a string.
(getvar <varname>)
Retrieves the value of an AutoCAD system variable.
(graphscr)
Flips from text screen to graphics screen.
(grclear)
Clears the graphics screen.
(grdraw <from><to><color>[<highlight>])
Draws a vector between two points.
(grtext <box><text><highlight>])
Write to text portion of graphics screen.
(grread <track>)
Allows AutoLISP to read AutoCADs input devices.
I
(if <testexpr><thenexpr>[<elseexpr>])
Conditionally evaluates expressions.
(inters <pt1><pt2><pt3><pt4>[<onseg>])
Returns the intersection point of two lines. If <ONSEG> is greater than 0 the intersection may lie past the endpoints of the lines.
(itoa <number>)
Returns the conversion of an integer to a string.
L
(lambda <arguments><expr>...)
Defines an 'anonymous' function.
(last <list>)
Returns the last element in <LIST>.
(length <list>)
Returns the number of elements in <LIST>.
(list <expr>)
Returns the list of a number of expressions.
(listp <list>)
Returns T if the item is a list.
(load <filename>)
Loads an AutoLISP program in memory.
(log <number>)
Returns natural log of <NUMBER> as a real.
(logand <number><number>...)
Returns the logical bitwise AND of a list of numbers.
(logior <number><number>...)
Returns the logical bitwise OR of a list of numbers.
(lsh <numb1><numbits>)
Returns the logical bitwise SHIFT operator of <NUM1> by <NUMBITS>
M
(mapcar <function><list1>...<listn>)
Executes <FUNCTION> on the elements of <LIST1> through <LIST2>.
(max <number><number>...)
Returns the maximum of the numbers given.
(member <expr><list>)
Searches <LIST> for first occurence of <EXPR> and returns the remainder of the list.
(menucmd <string>)
Switch between pages in an AutoCAD menu.
(min <NUMBER><NUMBER>...)
Returns the smallest of the numbers given.
(minusp <ITEM>)
Returns T if the item is negative.
N
(not <ITEM>)
Returns T if the expression is nil.
(nth <n><LIST>)
Returns the 'nth' element of <LIST>.
(null <ITEM>)
Returns T if <ITEM> is bound to nil.
(numberp <ITEM>)
Returns T if <ITEM> is an integer or a real.
O
(open <FILENAME><MODE>)
Opens a file.
(or <EXPR>...)
Returns the logical OR of a list of expressions.
(osnap <PT><MODE-STRING>)
Returns a point by applying the osnap command.
P
(polar <PT><ANGLE><DISTANCE>)
Returns point at <ANGLE> and <DISTANCE> from <PT>.
(prin1 <EXPR>[<FILENAME>])
Prints <EXPR> on the screen or to <FILENAME>.
(princ <EXPR>[<FILENAME>])
Same as prin1 except control character are printed without expansion.
(print <EXPR>[<FILENAME>])
Same as prin1 except a new line is printed before <EXPR> and a space is printed after.
(progn <EXPR>...)
Evalutes each expression sequentially.
(prompt <MSG>)
Displays <MSG> on the screen PROMPT area.
Q
(quote <EXPR>)
Returns <EXPR> unevaluated.
R
(read <STRING>)
Returns the first LIST obtained from <STRING>.
(read-char [<FILENAME>])
Returns a character from the keyboard buffer or from <FILENAME>.
(read-line [<FILENAME>])
Returns a string from the keyboard buffer or from <FILENAME>.
(redraw [<ENAME>][<MODE>])
Redraws either entire drawing, or <ENAME> in <MODE>.
(rem <NUM1> <NUM2> ...)
Returns the remainder of <NUM1>/<NUM2>.
(repeat <NUMBER> <EXPR> ...)
Evaluates each expression <NUMBER> times.
(reverse <LIST>)
Returns a list reversed.
(rtos <NUMBER> [<MODE><PRECIS>])
Returns a real number as a string.
S
(set <SYM><EXPR>)
Sets the value of a sysmbol name.
(setq <SYM1><EXPR1>...)
Sets the value of <SYM1> to <EXPR1>.
(setvar <VARNAME><VALUE>)
Sets a system variable to <VALUE>.
(sin <ANGLE>)
Returns the sine of an angle.
(sqrt <NUMBER>)
Returns the square root of <NUMBER>.
(ssget [<MODE>][<PT1><PT2>])
Returns a selection set.
(sslength <SS>)
Returns the number of entities in selection set <SS>.
(ssname <SS><INDEX>)
Returns the name of the <INDEX>th entity in selection set <SS>.
(ssadd [<ENAME>][<SS>])
Adds entities to selections sets.
(ssdel [<ENAME>][<SS>])
Deletes entities from selections sets.
(ssmemb [<ENAME>][<SS>])
Returns <ENAME> if <ENAME> is a member of selections set <SS>.
(strcase <STRING>[<WHICH>)]
Returns <STRING> as upper case if <WHICH> is nill. If <WHICH> is not nill the returned string will be all lower case.
(strcat <STRING1><STRING2>..)
Concatenates a series of strings.
(strlen <STRING>)
Returns the number of characters in a string.
(subst <NEWITEM><OLDITEM><LIST>)
Substitutes <NEWITEM> for <OLDITEM> in <LIST>.
(substr <STRING><START><LENGTH>)
Returns a substring of <STRING> begining at <START> of <LENGTH> characters.
T
(tblnext <NAME> [<rewind>])
Scans symbol table for next entity.
(tblsearch <NAME><SYM>[<setnext>])
Searches entire symbol table for <NAME>.
(terpri)
Prints a new line on the screen.
(textscr)
Flips from graphics screen to text screen.
(trace <FUNCTIONS>...)
Debugging aid that returns the last function name.
(trans <PT><FROM><TO>[<DISP>])
Translates a point <PT> from one coordinate system to another.
(type <ITEM>)
Returns the type of <ITEM>.
U
(untrace <FUNCTIONS>...)
Clears the trace floag for <FUNCTIONS>.
V
(ver)
Returns AutoLISP version number.
(vmon)
Enables AutoLISP virtual function pager.
(vports)
Returns a list of currently active viewports.
W
(while <TESTEXPR><EXPR>)
Evaluates <TESTEXPR> and if not nill executes <EXPR>.
(write-char <NUM> [<FILENAME>])
Writes the character represented by the ASCII value of