How to make 7zip case sensitive?

Han Nguyen
  • Han Nguyen

    Han Nguyen - 2012-10-04

    How can I change switch to case-sensitive mode in Windows 7-zip?

    I can't find any way to do this from the "Tools"-> "Options".


  • Igor Pavlov

    Igor Pavlov - 2012-10-05

    There is -ssc switch that you can use with command line version of 7-Zip.

  • Han Nguyen

    Han Nguyen - 2012-10-06

    Thanks for reply, I had tried the command-line with -ssc but it didn't work for me.

    FWIW the archive file I worked with is (, the problematic files are, e.g., 2621A and 2621a in /system/etc/terminfo.

  • Igor Pavlov

    Igor Pavlov - 2012-10-06

    What command did you use?
    What result did you expect?
    What result did you get?

  • Han Nguyen

    Han Nguyen - 2012-10-09

    I used the command 7za.exe -ssc x cm10*.

    I expected the files 2621A and 2621a (as an example, there are a bunch of similar cases in above archive) to be treated as different files, instead I got an error message saying duplicated file name and asking me whether to over-write, skip, or auto-rename one of the two files.

  • Igor Pavlov

    Igor Pavlov - 2012-10-09

    Windows file system is not case sensitive system.
    Maybe it's possible to create a.txt and A.txt in one folder.
    But most applications in Windows don't like such cases,

    And please use 7-Zip forum instead of p7zip forum.
    p7zip forum is for posix/linux version


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