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cmd trick |
The
Windows Command Prompt tool, and many of its commands,
might seem boring or even relatively useless at first glance, but as
anyone who has ever used the Command Prompt very often can tell you, there's
much to love!
Below are several Command Prompt tricks and
other Command Prompt hacks that I guarantee will get you excited about many of
the mundane sounding Command Prompt commands like telnet, tree, or
robocopy... okay, robocopy sounds pretty cool.
Some of
these Command Prompt tricks and hacks are special features or uses of the
Command Prompt itself, while others are just neat or relatively unknown things
you can do with certain commands. Enjoy!
1. Use Ctrl-C to Abort a Command
Just
about any command can be stopped in its tracks with the abort
command: Ctrl-C.
2.If you
haven't actually executed a command, you can just backspace and erase what
you've typed, but if you've already executed it then you can do a Ctrl-C to
stop it.
Warning: Ctrl-C
isn't a magic wand and it can't undo things that aren't undoable, like a partially
complete format command. However, for things like the dir command that
seem to go on forever or questions you're asked at the prompt that you don't
know the answer to, the abort command is an excellent Command Prompt trick to
know.
3. Run Command Prompt as an Administrator Automatically2. View a Command's Results One Page (or Line) at a Time
Ever
run a command, like the dir command, that produces so much information on the
screen that it's almost useless? You're not alone.
One way
around this is to execute the command in a special way so whatever information
is generated is shown to you one page, or one line, at a time.
To do
this, just type the command, the dir command for example, and then follow it
with the pipe redirection operator and then the more command.
For
example, executing dir /s | more will generate the thousands
of lines of results that you expect from the dir command, but the more command
will pause each page of results with -- More -- at the bottom
of the page, indicating that the command is not done running.
Just
press the space bar to advance by page or press the Enter key to advance one
line at a time.
See Command Prompt Trick
#7 below for a different solution to this problem.
Many
commands require that you execute them from an elevated Command
Prompt in Windows - in other words, execute them from a Command Prompt
that's run as an administrator.
You can
always right-click on any Command Prompt shortcut and chooseRun as
administrator but creating a shortcut to do the same thing can be a
huge time saver if you're a frequent Command Prompt power user.
To complete this Command
Prompt trick, just create a Command Prompt shortcut on the desktop, enter the
shortcut's properties and then select the Run as administrator box
located in the Advanced button on theShortcut tab.
4. Become a Command Prompt Power User with Function Keys
The
fact that the function keys actually do something in the Command Prompt is
maybe one of the best kept secrets about the tool:
F1: Pastes the last executed command (character by character)
F2: Pastes the last executed command (up to the entered character)
F3: Pastes the last executed command
F4: Deletes current prompt text up to the entered character
F5: Pastes recently executed commands (does not cycle)
F6: Pastes ^Z to the prompt
F7: Displays a selectable list of previously executed commands
F8: Pastes recently executed commands (cycles)
F9: Asks for the number of the command from the F7 list to paste
F2: Pastes the last executed command (up to the entered character)
F3: Pastes the last executed command
F4: Deletes current prompt text up to the entered character
F5: Pastes recently executed commands (does not cycle)
F6: Pastes ^Z to the prompt
F7: Displays a selectable list of previously executed commands
F8: Pastes recently executed commands (cycles)
F9: Asks for the number of the command from the F7 list to paste
Command Prompt Trick #17
is full of arrow key shortcuts, a few of which are similar to these function
key tricks.
5. Hack the Prompt Text
Did you
know that the prompt itself in the Command Prompt is completely customizable
thanks to the prompt command? It is, and when I say customizable, I mean really customizable.
Instead
of C:\>, you can set the prompt to any text you want, have it
include the time, the current drive, the Windows version number, you name
it.
One
useful example is prompt $m$p$g which will show the full path
of a mapped drive in the prompt, alongside the drive letter.
You can always
execute prompt alone, without options, to return it to its
sometimes boring default.
6. Get Help for Any Command
Believe
it or not, the help command does not provide help
for every Command Prompt command. However, any command can be suffixed with
the /? option, usually called the help switch, to display
detailed information about the command's syntax and often times even some
examples.
I doubt
that the help switch is the coolest Command Prompt trick you've ever heard of,
but it's hard to disagree that it's one of the more useful.
Unfortunately, neither
the help command nor the help switch offer much in the way of explaining how to
interpret the syntax. See How To Read Command Syntax if you need help
with that.
7. Save a Command's Output to a File
An
incredibly useful Command Prompt trick is the use of redirection
operators, specifically the > and >> operators.
These
little characters let you redirect the output of a command to a file, giving
you a saved version of whatever data the command produced in the Command Prompt
window.
For
example, let's say you're about to post a computer problem to an online forum
and you want to provide really accurate information about your computer. An
easy way to do that would be to use the systeminfo command with a redirection
operator.
For
example, you might execute systeminfo > c:\mycomputerinfo.txtto
save the information provided by the systeminfo command to a file. You could
then attach the file to your forum post.
See How To Redirect
Command Output to a File for more examples and a better explanation of how
to use redirection operators.
8. View Your Hard Drive's Entire Directory Structure
I think
one of the neatest little commands is the tree command. With tree, you can
create a kind of map of your computer's directories.
9.Execute tree from
any directory to see the folder structure under that directory.
Tip: With
so much information, it's probably a good idea to export the results of the
tree command to a file. For example, tree /a > c:\treeresults.txt,
just as explained in Command Prompt Trick #7.
10. Copy From the Command Prompt9. Customize the Command Prompt Title Bar Text
Tired
of that Command Prompt title bar text? No problem, just use
the title command to change it to whatever you like.
For
example, let's say your name is Maria Smith, and you want to express your
ownership of the Command Prompt: execute title Property of Maria Smith and
the Command Prompt's title bar will change immediately.
The
change won't stick, so the next time you open Command Prompt the title bar will
be back to normal.
The title command is
usually used to help give a custom appearance in script files and batch
files... not that I'm saying titling it with your name isn't a good idea!
As you
may or may not know, copying from the Command Prompt is not as easy as copying
from other programs, which is part of the reason why saving a command's output
to a file, Command Prompt Trick #7, is so handy.
But
what if you do just want to copy a short section of text to the clipboard? It's
not too hard but it's not very intuitive either.
Right-click anywhere in the Command Prompt window
and choose Mark. Now, highlight with your left mouse button
whatever you'd like to copy. Once your selection is made, press Enter.
Now you can paste that
information into whatever program you'd like.
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