Which are the Most used Shortcut keys in SolidWorks & Its Function?

R- recent documents

ctr+B -  rebuild

S - for short in sketch, assembly and drawing

F - fit to screen

Z - for zoom

right mouse click - for short cut selection 

ctr+save - to save

ctrl +o - to open from drive

L - line 

Solidworks has an option to customize the short keys to our convenience. So writing some short keys i use won't be much helpful.

Through out my work i use the short key for measure and normal. That's the two options i can't survive without in SolidWorks. :)

Complete list of Default Shortcuts in SolidWorks:

Recommeded to use customized list of shortcuts to make the job faster.

L           Line

Ctrl+1    Front

Ctrl+2    Back

Ctrl+3    Left

Ctrl+4    Right

Ctrl+5    Top

Ctrl+6    Bottom

Ctrl+7    Isometric

Ctrl+8   Normal To

A            Command option toggle

C            Expand/Collapse Tree

Shift+C  Collapse all Items.

E            Filter Edges

Ctrl+F    Find/Replace

N            Next Edge

Ctrl+Q   Force Regen

G           Magnifying Glass

S           Shortcut Bar

V            Filter Vertices

F8          Hide/Show DisplayPane.

F5          Toggle Selection Filter Toolbar

F6          Toggle Selection Filters

F7         Spell Checker

Home   Scroll to FM tree top

End       Scroll to FM tree bottom

X            Filter Faces

Y            Accept Edge

Z            Zoom Out

Shift+Z  Zoom In

Ctrl+Shift+Z     PreviousView

Ctrl+N   New

Ctrl+O   Open

Ctrl+W  Close

Ctrl+S   Save

Ctrl+P   Print

R            Browse Recent Documents

Ctrl+Z    Undo

Ctrl+Y    Redo

Enter     Repeat Last Command

Ctrl+X    Cut

Ctrl+C   Copy

Ctrl+V    Edit Paste

Delete   Delete

Ctrl+B    Rebuild

Ctrl+R    Redraw

Space    BarOrientation

F             Zoom to Fit

F3           Quick Snaps

F11        Full Screen

F9          FeatureManager Tree Area

F10       Toolbars

Ctrl+F1 Task Pane

• Ctrl+Drag: You can use this to copy in many situations. In sketch mode, you can copy a sketch entity. In part mode, you can use it to copy a feature. In assembly mode, you can use it to copy a part. You can also copy a sub-assembly if you use the Feature Tree. In a drawing you can copy a view to the same sheet or another sheet if you use the tree.
• Ctrl+Q: This is the Force Rebuild command. You will find it nowhere on the toolbars, nor in the menus, nor in the command manager, nor in the Customize tab, but it is very important. This command rebuilds everything in the feature tree, making it more powerful than the standard Rebuild (Ctrl+B).
• Ctrl+B: This is the default Rebuild command (can be changed). This will rebuild only features that have changed since the last rebuild. Long-time SolidWorks users may remember when the default hotkey for this was R. Be warned that there may be unseen errors in your part that will not be rebuilt or seen using this method (see Ctrl+Q above)

Eby Mathai your detailed answer is the complete solution. 

The good thing in SolidWorks is that you can set your own sshortcut keys. like R for rectangle D for dimensions and all...Shortcuts helps alot in designing. it saves time.

Crtl B : Rebuilt

Ctrl1 :Front View 

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Ctrl7 :Isometric View

Listed below are the predefined keyboard shortcuts :

Arrow Keys                                       Rotate the view

Shift+Arrow  Keys                             Rotate the view in90° increments

Alt+Left or Right Arrow Keys              Rotate about normal to the screen

Ctrl+Arrow Keys                               Move the view

Shift+Z                                            Zoom In

Z                                                     Zoom Out

F                                                      Zoom to Fit

G                                                     Magnifying Glass

Ctrl+1                                               Front Orientation

Ctrl+2                                               Back Orientation

Ctrl+3                                                Left Orientation

Ctrl+4                                                Right Orientation

Ctrl+5                                                Top Orientation

Ctrl+6                                                Bottom Orientation

Ctrl+7                                                 Isometric Orientation

Ctrl+8                                                View Normal To

Spacebar                                          View Orientation dialog

L                                                     Line

A                                                     Arc

Ctrl+N                                             New

Ctrl+O                                            Open

Ctrl+W                                           Close

Ctrl+S                                           Save

Ctrl+P                                             Print

R                                                  Recent Documents

Ctrl+Z                                         Undo

Ctrl+Y                                        Redo

Ctrl+X                                       Cut

Ctrl+C                               Copy

Ctrl+V                               Edit Paste

Delete                               Delete

Ctrl+B                               Rebuild

OR 

Click Tools, Customize and the Keyboard tab to see assigned shortcuts. Use the same dialog to add shortcuts of your own.

https://drive.google.com/file/d/0B9kdqfJSWDLZVnFsYWdTdUZBa0U/edit?usp=sharing

ctrl+8

F3 & Ctrl+8

a-c aircraft