What are the most used shortcuts in AutoCAD 2D?

that depends upon on drawing 

here are some common autocad short cuts 

Line : l

Circle : C

Polygon : POL

Arc :A

hatch : h

gradient : GD

boundary : bo

rec : Rec

Erase : E

move : m

copy : co

mirror : mi

array : ai

offest : o 

fillet : fl

poly line : pl

chafer : cha

Xplode : x

join : j

rotote : ro

trim :tr

layer :la

new layer : alt + N

area :aa

external reference :Xref

plot : Ctrl + p (plot)

region : reg 

Extrude : ext

visual style : vs

View : v

make block : b

insert  block : i 

block editor : Bedit

table : tb 

table style : ts

text : t 

text style : st

Qick dimension :  Qdim

dimension liner : Dli

Dimension Diameter : dimdia

dimension radius :dimrad

Elipse : el

 

hope u find useful

 

Depends on your field, these are some shortcuts

 

Arc

A

Area

AA

attcount

AC

txtedt

AE

Align 

AL

appload

AP   

aps-config

APS

array

AR 

actile

AT

attdef

ATT

block

B

blk

B

blkbb

B2B

blkbl

B2L

cloud

BBL

c-bifold

BF

bhatch

BH

brkint

BI

bblldr

BL

blipm

BM

boundary

BO

c-bipass

BP

break

BR

circle

C

cpy2layr

C2

cpy2flr

C2F

cpyblk

CB

cpycont

CC

c-cwind

CCW

c-sdoor

CD

c-ddoor

CDD

properties

CH

chamfer

CHA

chlayr

CL

crvl

CLA

crvla

CLAA

crvlb

CLB

crvld

CLD

crvls

CLS

crvlt

CLT

cpymult

CM 

copy

CO

color

COL

copy

CP

c-rwind

CR

c-slider

CS

cpytxt

CT

Properties

Ctrl+1

CH

design center

Ctrl+2

ADC

Command Line

Ctrl+9

selects all

Ctrl+A

snap mode

Ctrl+b

copy

Ctrl+c

object snaps

Ctrl+f

Grid mode

Ctrl+g

ortho mode

ctrl+L

new

Ctrl+n

open

Ctrl+o

print

Ctrl+p

save

Ctrl+s

Open new tab

Ctrl+t

paste

Ctrl+v

cut

Ctrl+x

repeats last action

Ctrl+y

reverses last action

Ctrl+z

o-cwind

CW

dimstyle

D

dalign

DAL

dangular

DAN

divblk

DB

dimbaseline

DBA

dimcenter

DCE

dcon

DCO

o-ddoor

DD

c-ddoor

DDC

ddiam

DDI

detlhatch

DH

dist

DI

divide

DIV

dlinear

DLI

aps-donut

DO

draworder

DR

dradius

DRA

c-sdoor

DRC

drotated

DRO 

dsettings

DS

dimstyle

DST

dtext

DT

detailer 

DTL

dview

DV

dwelev

DW 

Erase

E

elevblks

EB

ddedit

ED

elevhatch

EH 

ellipse 

EL

emode

EM

extend 

EX

displays help

F1

text window on/off

F2

osnap

F3

gridmode

F7

orthomode

F8

snapmode

F9

Fillet

F 

filter

Fi

fzlyr

FL

fillrad

FR

group

G

gypbd

GB

glulam

 GL

ddgrips

GR

bhatch

H

hatchedit

HE

hide

HI

hilite

HL

hatchrel

HR

insert

I

imageattach

IAT

import

IMP

insertobj

IO 

layriso

IS

jdoor

JD

jhang

JH

jwind

JW

aps-config

KLH

keynot

KN

keynota

KNA

keynotb

KNB

keynotd

KND

keynots

KNS

keynott

KNT

line

L

layer

LA

lclean

LC

leadr

LD

leadra

LDA

leadrb

LDB

leadrd

LDD

leadrs

LDS

leadrt

 LDT

qleader

LE

layroff

LF

list

LI

sleadr

LL

 sleadra

LLA

sleadrb

LLB

sleadrd

LLD

layrlock

LLK

sleadrs

LLS

sleadrt

LLT

layout

LO

layron

LON

list

LS

layrset

LST

linetype

LT

ltscale

LTS

layrunlock

LU

lweight

LW

move

M

matchprop

MA

measure

ME 

mirror

MI 

mline

ML

properties

MO

mspace

MS

mtext

 MT

mview

MV

notes

N

notesc

NC

newline

NL

newscheme

NS

aps-offset

O

of2layr

O2

o-cwind

OC

o-sdoor

OD

o-ddoor

ODD

o-ohead

OH

c-ohead

OHC

options

OP

o-patdoor

OPD

o-rwind

OR

osnap

OS

o-slider

OSL

pan

P

pastespec

PA

purgeall

PAL

planblks

PB

pkdtch

PD

c-patdoor

PDC

o-patdoor

PDO

pedit

PE

planhatch

PH

pjoin

PJ

pline

PL

plywd

PLY

point

PO

polygon

POL

plotprep

PP

options

PR

pspace

PS

purge

 PU

pwid

PW

qdimension

Q

qtxt

QT

redraw

R

redrawall

RA

restoredim

RD

regen

RE

regenall

REA

rectangle

REC

region

REG

rename

REN

revolve  

REV

rgnlayr

RL

rotate  

RO

rectsld

RS

o-rwind

RW

c-rwind

RWC

stretchc

S

qsave

SA

shdwbox  

SB

scale

SC

script

SCR

o-sdoor  

SD

c-slider

SDC

dsettings

SE

section

SEC

setvar

SET

shade

SHA

slice

SL

snap

SN

solid

SO

spell

SP

spline

SPL

surnot

SR

style

ST

stretchcp

STC

subtract

SU

mtext

T

txt2mtxt

T2M

talign

TAL

tclean

TC

txtedt

TE

thickness

TH

tilemode

TI

ldrtxt

TL

upcase

UP

view

V

ddvpoint

VP

wblock

W

wedge

WE

wallfill

WF

wgrid

WG

explode

 X

exp2layr

X2

xattach

XA

xbind

XB

xclip

XC

xclean

XCL

xline

XL

xref

XR

zoom

Z

zoom all

ZA

zoom dynamic

ZD

zoom extents

ZE

zoom previous

ZP

Dear All,

I happy with others Answer and I don't want to repeat again my vote for all

 Thanks for all peoples whose participates in answer.

l = Line

c = circle

pl = polyline

spl = spline

bo = boundary

h = hatch

la = opens layers window

-la = layers options

op = opens options window

xl = infinite line

tr = trim

ex = extend

x = explode

z (enter) e (enter) = zoom extent

di = measure distance

dal = put linear dimensions

a = arc

pu - purge

plan = goes to the top view

overkill = deletes lines over each other, cleans your selected drawing

ctrl+z = undo

ctrl+y = redo

ctrl+s = save

shift+ctrl+s = save as

ctrl+p = plot

ctrl+a = select all

s = strech

sc = scale

ro = rotate

m = move

co = copy

f3 = object snap

f8 = orthomode

f7 = show/hide grid

f9 = snap to grid

ptype = point type selection

lts = line type scale

re = regen

layiso - layer isolate (isolates selected layer)

layon = all layers on

layoff = layer off (turns selected layer off)

fi = filter

shift+right click = object snap menu

o = offset

f = fillet

pe = polyline edit

ed = edit (workks for various things like text and dimensions .. etc)

br = break

div = divide

ma = match

 

there are literally thousand of shortcuts that you will learn and develop while using the software. I am sure there are multiples of shortcuts that my memory doesn't help me to remember now but I use them by my instinct while using the software

F3: Snap Mode

L : Line

pl : pline

a : arch

c : circle

donut : donut

layers : to open layers window

m : move

co: copy

o : offset

trim: trim objects

measure

divide

 

and the list goes on but those are the most I use on a daily basis