I need a command line unzip program

By mark ·
I have been using pkunzip for years now. unfortunately it can't handle unzipping files with long names and really can't handle files with multiple periods. I tried unzipping using RAR.exe command line tool but it will not unzip anything that was not zipped using rar. These are files created by Medicaid and I don't know what program they are using to zip the files. Does anyone know of a command line utility that will handle this? I need a command line tool so I can perform it using a program that will automatically unzip, rename and place in the correct folder.

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Doing a search....

by ThumbsUp2 In reply to I need a command line unz ...

... returned several hundred thousand possibilities. The first one I checked looks promising:

However, I'm almost willing to bet that you'll encounter the same types of problems as you do with pkunzip (long file names and multiple extensions) while using any command line program simply BECAUSE they're all doing it at the command line.

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Zip command line

by ralfeus In reply to I need a command line unz ...

Check out this URL

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by mark In reply to Zip command line

I didn't realize winzip did this. I was hoping to avoid having our clients purchase another product but this may be a good option. I just don't want to buy a licensed version to test the add on.

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Get at least version 2.5 for DOS EDITED

by IC-IT In reply to I need a command line unz ...

It handles long file names. Just found out it is flakey under NT. Try the second link if using NT.

Open Source.

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i have pkunzip 2.5 for dos

by mark In reply to Get at least version 2.5 ...

Not sure if I have the 2.5 for dos edited. do you know how I would know this? In this version, I can unzip a file which contains long filenames, however it will rename them to short filenames which can be a problem if the files are similarly named. It will not touch files with multiple periods.

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Sorry for the Curveball

by IC-IT In reply to i have pkunzip 2.5 for do ...

I posted then Edited my post because I discovered the 2.5 version does not play nicely under an NT system. The second link was added because it allegedly will handle the long file names and pkzip files. Plus it is free.
Sorry for the initial mis-direction.

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by mark In reply to I need a command line unz ...

I tried and copied the exe to my server and it didn't function. I was hoping it would work as a stand alone exe. I also downloaded a trial version of the pkzip for windows with the add on command line which worked great for 39.00. I was hoping for a freeware unzip.

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32 bit but The last of the freebies :)

by Jacky Howe In reply to I need a command line unz ...


SFX Self Extractor

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My slightly silly two bob's worth ...

by OldER Mycroft In reply to I need a command line unz ...

Have you considered emailing Medicaid and asking them what program they are zipping their stuff with?

According to this site:

their proprietary software conforms to the following:

ZIP / Self-Extracting ZIP Version N/A: ZIP files are used to simplify the download process by wrapping a number of separate files into a single "wrapper" and compressing the original files by a significant amount. ZIP and UNZIP software is available from a variety of vendors. Freeware packages available include StuffIt Expander from Allume Systems and Unzip. See the links in the Related Links Outside CMS section below. Each runs on Windows, MacOS, and Linux systems. Linux and other UNIX systems include ZIP and UNZIP software in the base installation.

Link for Stuffit Expander from Allume Systems:
returns a 404 Not Found error

Link for Unzip:

Blurb includes: UnZip is an extraction utility for archives compressed in .zip format (also called "zipfiles"). Although highly compatible both with PKWARE's PKZIP and PKUNZIP utilities for MS-DOS and with Info-ZIP's own Zip program, our primary objectives have been portability and non-MSDOS functionality.

Perhaps your adherence to the command line is the main crux of your problem?


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