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-
- H O W T O U N Z I P Z I P P E D F I L E S
-
- A zipped file is a file or a collection of files
- compressed into a smaller space. So, a zipped file is a
- compressed file, and people zip files to save hard drive
- space. Files that have a .ZIP extension are usually
- zipped using a program called PKZIP. Files with the .ZIP
- extension are unusable until you unzip them with a
- shareware program called PKUNZIP.EXE. In other words, you
- can't get to the goodies unless you unzip'em. It is
- usually best to unzip zipped files on the hard drive
- where they will have plenty of room to expand. It is not
- unusual for a zipped file to be one-half to one-third the
- size of the original file. When using a modem, you will
- find that most Bulletin Board Systems (BBSs) store their
- files in zipped format.
-
- If you obtain the unzipping program from a shareware
- vendor, it may be in the form of a self-extracting file.
- A self-extracting file is also a compressed file. When a
- self-extracting file is run, other files pop out (or
- emerge) from it. It is best to run a self-extracting file
- from the hard drive, so it will have plenty of space to
- expand. Sometimes, if you try to run a self-extracting
- file from a floppy disk, the disk fills up before all the
- files can pop out. New computer users often make this
- mistake. If you make this mistake and do a directory on
- the disk, you will see that there is not enough space
- left on the floppy disk.
-
- If you order PKUNZIP from a shareware vendor and do a
- directory on the disk, you may see only one file called
- PKZ204G.EXE. The version number changes periodically. You
- will want the latest version to insure compatibility.
- This is a self-extracting file, so you will want to copy
- it to your hard drive before you run it. When you run the
- self-extracting program PKZ204G.EXE, a file called
- PKUNZIP.EXE will pop out of it, and other files, too. For
- our example you will want to have a copy of PKUNZIP.EXE
- on a floppy disk. For this example make a temporary
- directory on your hard drive called C:\TEMP. At the C>
- type:
-
- cd \<ENTER>
-
- This takes you to the root directory of the C drive. Then
- make a directory using the MD command:
-
- md \temp <ENTER>
-
- Now place a disk that contains PKUNZIP.EXE in the floppy
- drive A and type:
-
- copy a:pkunzip.exe c:\temp <ENTER>
-
- PKUNZIP.EXE will be copied from the A drive to the TEMP
- subdirectory on the C drive. Next, copy the file or files
- that need to be unzipped to that directory. Put the disk
- which has the zipped file that you want to unzip in drive
- A and type:
-
- copy a:filename.zip c:\temp <ENTER>
-
- In the above example filename is the name of the zipped
- file, and ZIP will be the extension. If there are
- numerous zipped files on the A drive that you wanted to
- unzip, you could copy them all to C:\TEMP by issuing the
- following command: COPY A:*.ZIP C:\TEMP <ENTER>. Note
- that PKUNZIP.EXE and the file or files that need to be
- unzipped are now in the same subdirectory (C:\TEMP) on
- the hard drive. Now switch over to C:\TEMP to unzip the
- file(s) with a .ZIP extension.
-
- At the C> type:
-
- cd \temp <ENTER>
-
-
- dir <ENTER>
-
- When you issue the DIR command, you should see
- PKUNZIP.EXE and the file or files with the ZIP extension
- that you are going to unzip. Then type:
-
- pkunzip filename <ENTER>
-
- In this example, filename is the name of the zipped file.
- If the file was named PINBALL.ZIP, you would have typed:
- PKUNZIP PINBALL <ENTER>. A file or files will pop out of
- the zipped file. ZIP-ITY-DO-DA! It's like popcorn. Those
- files explode out of the original file! Don't be alarmed
- if you see EXPLODING... or INFLATING... on your screen
- when you unzip. This is normal. You can then run the
- files that appear in the usual manner. You will not have
- to unzip them again. If you have room, you can copy the
- files to a floppy disk or somewhere else on your hard
- drive. You may want to delete the file with the .ZIP
- extension in C:\TEMP at this time to save room on your
- hard drive.
-
-
- SUMMARY
-
- HOW TO UNZIP ZIPPED FILES
-
- 1. Make a directory on your hard drive using the MD
- command.
-
- 2. Copy the file with the .ZIP extension (the file
- you want to unzip) to the directory you just made
- in Step 1.
-
- 3. Copy PKUNZIP.EXE to the directory you made in
- Step 1.
-
- 4. Change to the directory you made in Step 1. This
- makes it the active directory. It should now
- contain PKUNZIP.EXE and the file you want to
- unzip.
-
- 5. Type:
- pkunzip filename <ENTER>
-
- Note that filename is the name of the file that
- you want to unzip. This file will have a .ZIP
- extension. For example, if you had a file called
- CHESS.ZIP, you would type: PKUNZIP CHESS <ENTER>
-
-
-
- TIP
-
- You can unzip zipped files from any directory when
- PKUNZIP.EXE is in a directory that is in your computer's
- PATH. Then you can eliminate Step 3 above. Why not make
- a directory called C:\UTILS and copy PKUNZIP.EXE to it?
- For help on how to set your PATH, get my book, Learning
- DOS for the Complete Novice, 2nd edition, by Steven Woas,
- published by Celestial Press.
-
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