-d, --date=STRING
              display time described by STRING, not 'now'

E.g., to determine the day of the week for August 10, 2008, you could use the following command at a Bash prompt:

$ date --date=2008-08-10
Sun Aug 10 00:00:00 EDT 2008

If you only want to see the day of the week, e.g., day 7, "Sun", or "Sunday", then you can provide a format parameter as well as shown below:

$ date '+%u' --date=2008-08-10
7
$ date '+%a' --date=2008-08-10
Sun
$ date '+%A' --date=2008-08-10
Sunday

The format values used above are as follows:

%a     locale's abbreviated weekday name (e.g., Sun)

%A     locale's full weekday name (e.g., Sunday)

%u     day of week (1..7); 1 is Monday

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Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation.  All rights reserved.

C:\Users\Administrator>pkgmgr /iu:"TelnetClient"

C:\Users\Administrator>

After you enter the pkgmgr /iu:"TelnetClient" command, you won't see any indication that the software has been installed. The command prompt will be redisplayed and you may have to wait a couple of minutes afterwards for the installation to be completed depending on the speed of your system. If you see a User Account Control dialog box displayed when you enter the command, provide a userid and password for an administrator account and confirm that you want to allow the action it displays.

After you've installed the telnet client application, you can type telnet at a command prompt to start the client, which will take you to the telnet client prompt:

Welcome to Microsoft Telnet Client

Escape Character is 'CTRL+]'

Microsoft Telnet>

The telnet client program, telnet.exe is installed in \windows\system32.

C:\Windows>dir /s telnet.exe
 Volume in drive C has no label.
 Volume Serial Number is 9420-A68C

 Directory of C:\Windows\System32

07/13/2009  08:39 PM            79,872 telnet.exe
               1 File(s)         79,872 bytes

 Directory of C:\Windows\winsxs\amd64_microsoft-windows-telnet-client_31bf3856ad
364e35_6.1.7600.16385_none_1426830c3ebb712d

07/13/2009  08:39 PM            79,872 telnet.exe
               1 File(s)         79,872 bytes

     Total Files Listed:
               2 File(s)        159,744 bytes
               0 Dir(s)  61,068,718,080 bytes free

[/network/telnet] permanent link

1. Right-click on a file of that type in the Finder.
2. Select Get Info.
3. Click on the triangle to the left of "Open with", then select the application you wish to use to open files of that kind.
4. Click on the Change All.. button.
5. When asked to confirm that you want to change all similar documents to open with the application click on the Continue button.

Example

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The Star Wars ssaga has been told in movies, animated TV series, a comic book series, novels, games, and fan fiction. It has also been related in ASCII art .

                          -===                  ####
        What are you     ""o o                 {"o o}
          talking        _\ -/_                 { =}
           about?    #  /      \             {~~   //~}
                     \\//| __ |\\           {{~{  //}~}}
                      \/ |/  \| \\          {} {//  } {}
                         [][][]  ||         {} //   } {}
                         |\  /|  [#         {} H{{}}} {}
                         |_||_|  I]          @ H"||"} @
                         [ ][ ]  I             {"||"}
                         | || |                {"||"}
                         |_||_|                {"||"}
      __________________/__][_]________________[_][_]____________________

To view the story retold in ASCII art, use a telnet program to connect to a site in the Netherlands, towel.blinkenlights.nl. You can do so on an Apple OS X system by opening the Terminal program found in Applications/Utilities and then issuing the command telnet towel.blinkenlights.nl. You can issue the same command from a Linux system. You can stop the display by typing Ctrl-] and then typing quit at the telnet> prompt. On a Microsoft Windows system, you can use PuTTY; set the connection type to telnet rather than ssh. If you've ever created ASCII art, you can appreciate the magntitude of the effort by the following individuals:

Original Work   : Simon Jansen ( http://www.asciimation.co.nz/ )
Telnetification : Sten Spans ( http://blinkenlights.nl/ )
Terminal Tricks : Mike Edwards (pf-asciimation@mirkwood.net)

                                           /~\
                                          |oo )
                                          _\=/_
                          ___         #  /  _  \
                         / ()\        \\//|/.\|\\
                       _|_____|_       \/  \_/  ||
                      | | === | |         |\ /| ||
                      |_|  O  |_|         \_ _/  #
                       ||  O  ||          | | |
                       ||__*__||          | | |
                      |~ \___/ ~|         []|[]
                      /=\ /=\ /=\         | | |
      ________________[_]_[_]_[_]________/_]_[_\_________________________

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$ file example.png
example.png: PNG image data, 69 x 91, 8-bit/color RGBA, non-interlaced

You can also use the sips command with the -g parameter followed by pixelWidth or pixelHeight.

$ sips -g pixelWidth example.png
/Users/jdoe/Documents/example.png
  pixelWidth: 69
$ sips -g pixelHeight example.png
/Users/jdoe/Documents/example.png
  pixelHeight: 91

Make sure you capitalize those as shown above; if you don't and use PixelWidth or PixelHeight, i.e., you use an uppercase "P" rather than a lowercase "p", the result will be "<nil>".

$ sips -g PixelWidth example.png
/Users/jdoe/Documents/example.png
  PixelWidth: <nil>

If you only want to see the number, you can pipe the output of the command to the tail command, instructing that command to show only the last line of output, and then pipe the output of the tail command to the cut command, instructing that command to use the colon as the delimiter for separating items on the line and to show just the second field, which will be the number preceded by a space:

$ sips -g pixelWidth example.png | tail -n1 | cut -d":" -f2
 69
$ sips -g pixelHeight example.png | tail -n1 | cut -d":" -f2
 91

Or you can omit the tail command and just use cut by adding the -s argument to that command to suppress lines with no field delimiter character, i.e., lines with no colon in this case, assuming there will be none on the first line of output from the sips command.

$ sips -g pixelWidth example.png | cut -d":" -f2 -s
 69
$ sips -g pixelHeight example.png | cut -d":" -f2 -s
 91

If you don't want the space preceding the number, you can use a space character as the delimiter and specify f4 rather than f2, since there are two spaces output before "pixel" on the second line of ouput and a third one after the colon.

$ sips -g pixelWidth example.png | cut -d" " -f4 -s
69

If you wished to put that in a window that will be displayed to the user, you can use AppleScript.

Hit Enter after the double quote at the end of the second-to-last line to have a newline character appear in the ouput after the line with the width is displayed so that the height appears on a separate line. The ouput will be as shown below:

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C:\Users\Administrator>wbadmin /?
wbadmin 1.0 - Backup command-line tool
(C) Copyright 2004 Microsoft Corp.

---- Commands Supported ----

START BACKUP              -- Runs a one-time backup.
STOP JOB                  -- Stops the currently running backup or recovery
                              operation.
GET VERSIONS              -- List details of backups recoverable from a
                              specified location.
GET ITEMS                 -- Lists items contained in a backup.
GET STATUS                -- Reports the status of the currently running
                              operation.

[ More Info ]

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If the word isn't in the dictionary, you will see "No results found" displayed.

So, if you encounter a word on a webpage that you don't recognize, you can go to dictionary.com to look up the definition of the word or you can stay on the page and look it up by hitting those three keys simultaneously.

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The wrapmargin parameter is set to an integer number of characters. When set to any nonzero number, vi will watch the lines that you type in the input modes. When you get to within the "wraprmargin" number of characters of the 80th character on the line, the next space character that you type will cause vi to enter a carriage return for you. This parameter gives vi a word wrap feature for entering text data. When set to zero, the wrap margin feature is disabled.

Source: Unix for Application Developers by William A. Parrette ©1991, page 320

If you wish to have vi display the current line and column number as you type, use :set ruler. If it is turned on you will see the current line number and column number displayed at the bottom of the vi window, e.g., 24,67 if you were on line 24 at column 67. The numbers will change as you move the cursor whether you are in input mode or not. You can turn it off with :set noruler.

Alternatively, you can also use control-G on a Mac OS X system or Ctrl-G on a Linux system or with Vim on a Microsoft Windows system, i.e., hit the control, or Ctrl, and G keys simultaneously to see the current line and column numbers. You will see something like the following displayed at the bottom of the window:

"temp.txt" [Modified] line 30 of 34 --88%-- col 32

In the above example, while editing the file temp.txt the cursor was on line 30 of the 34 lines in the file and was at column 32 when I hit control-G. Since 30 is 88% of 34, the cursor was at a point 88 percent of the way through the file. Each time you hit control-G, the status information will be displayed for the current line and column when you hit the key combination.

With vi on a Mac OS X or Linux system, you can also use !}fmt when not in input mode, to automatically wrap the text in a paragraph so that a line doesn't exceed column 80 in that paragraph from the point where you enter that command.

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When I'm working I don't want to be interrupted by telemarketing calls, requests for donations, political spiels, etc. So I registered for a Google Voice number, which provides me with another phone number that I can provide to businesses or other entities that I believe may possibly sell my phone number to others or call me when I don't want interruptions because I'm working on something I need to focus on. Through the Google Voice webpage, I can configure the settings for the phone number provided by Google to automatically forward calls and text messages to the Google Voice number to my mobile number or stop the forwarding of calls and texts to the mobile number. When calls/texts aren't forwarded, callers can leave voice messages, which you can listen to through the Google Voice webpage or from email in your inbox. You can also view text messages the same way.

E.g., I wanted to check on refinancing my mortgage through LendingTree which required I provide a phone number at the website. I didn't want to provide my mobile number for fear I might start receiving a large number of calls when I'm trying to work. I don't want to turn off the phone, at such times which would mean I might miss work-related or calls or texts from family members. And I can't be certain that my phone number won't be sold to many telemarketers increasing the number of annoying telemarketing calls I receive. So I provided the Google Voice number. If at some point in the future I find I'm receiving a large number of unwanted calls to that number, I can just delete that number from my Google Account.

The process for obtaining a Google Voice number, which is free, is fairly simple.

[ More Info ]

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