Command Prompt / Console / Windows Subsystem for Linux (WSL)

Greetings from the Windows Command-Line Teams, including the Windows Console and Windows Subsystem for Linux (WSL) teams!

We’re hear to learn about the features you’d like to see in the Windows Console (the terminal app itself), Cmd and PowerShell shells, and the Windows Subsystem for Linux (WSL) upon which several Linux distros now run!

Note: Please don’t file bugs & issues here: file issues on our GitHub repos instead:

Please DO post your asks, ideas, wants and needs for future features: We ARE listening, and we ARE grateful for your feedback!

Windows Console & WSL Teams.

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  1. /proc/sys/fs/file-max does not exist

    I am attempting to run a bioinformatics pipeline using WSL. This pipeline relies on information within /proc/sys/fs/file-max.

    On standard Linux distros, this file is a plain text buffer containing an integer. WSL does not appear to have this file.

    [error] On machine: **omitted**, /proc/sys/fs/file-max does not exist.

    Reproduce by running the following command on WSL and compare to a Linux system.

    $ cat /proc/sys/fs/file-max

    File does not exist.

    A plain text buffer containing an integer should be present.

    4 votes
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      1 comment  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
    • Give API to measure the space that a string occupies

      Created to raise support for Console issue #218 that itself is an extension of issue #57
      From the issue OP: "Under a certain console/PTY, assume the font family/size is specified, give a string, and return the space (a bit mask of the character matrix?) it would occupy."

      Closest implementation is wcwidth and wcswidth as mentioned in Issue on Linux. This API is required for anything involving zero width joiners, as are any scripts involving more complicated rules, or RTL scripts.

      1 vote
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        0 comments  ·  Console/Terminal  ·  Flag idea as inappropriate…  ·  Admin →
      • relocate Temp folder

        for person using SSD and have a large memory (for example, I myself), it may be better to relocate "Temp" folder to another location (e.g., just put them into RAM-disk)
        but either using mklink/j or mklink/d will got an error 0x80070057 or 0x80070780 or something like that.
        it there any method to relocate Temp folder?

        1 vote
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          1 comment  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
        • Toggle quick edit

          Some apps (*cough* vim) support mouse but don't disable quick edit mode, so it is unusable unless I disable it for the whole console. Can we add a menu item to toggle quick edit mode for the current console?

          1 vote
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            0 comments  ·  Console/Terminal  ·  Flag idea as inappropriate…  ·  Admin →
          • Map WSL process ID to Windows process ID

            Currently there appears no clean way to get the corresponding Windows process ID of a running WSL process. I can inspect the PIDs of running processes in Windows taskmanager or with the tasklist command from bash on WSL as in:

            oeffner@grove:~$ cmd.exe /c tasklist

            But that does not guarantee unambiguous identification PIDs if more processes have the same name.

            It would be great if the PID of a WSL process was available as an additional column for Windows TaskManager and the tasklist command.

            It would also be great if it were possible under WSL to get the corresponding Windows PID…

            43 votes
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              3 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
            • 5 votes
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                0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
              • Support other POSIX systems, not just Linux

                Don't just use Linux, but support the running of other OS such as FreeBSD, NetBSD, and OpenIndiana, not on WSL but another subsystem.

                1 vote
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                  0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                • Make the per-directory case sensitivity flag (CaseSensitiveInfo) inherited to new child directories

                  I'm experimenting with moving my web development environment from MacOS to Windows 10. I wouldn't have considered the possibility a few years ago, but WSL and related linux compatibility improvements are looking really great! Unfortunately I have run into a bit of a sticking point around file system case sensitivity.

                  Since my projects require a case sensitive file system (deployed to linux servers) I was happy to learn about the new per-directory case sensitivity flag. The feature seems to be only partially complete though. Cloning my projects via git in WSL worked perfectly and all the directories were created with…

                  2 votes
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                    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                  • Wrap a DLL as a .so

                    If you provided a wrapper for DLLs to expose them as Linux shared object files, WSL programs could call into them to execute functions that use Windows drivers.

                    The example I have in mind is that my Python code, running in WSL, could load one of these wrapped DLLs posing as a .so file, and execute code that makes CUDA calls running against the native OS drivers.

                    See also https://wpdev.uservoice.com/forums/266908-command-prompt-console-windows-subsystem-for-l/suggestions/16108045-opencl-cuda-gpu-support

                    5 votes
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                      0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                    • Libsixel support for CMD/Powershell/WSL

                      I would like native libsixel support as the only current way to run it is as per this comment https://github.com/Microsoft/WSL/issues/1099#issuecomment-248513013. If possible, this support would be for for all terminals. This would prove extremely useful in performing quick research without having to leave the terminal.

                      14 votes
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                        2 comments  ·  Console/Terminal  ·  Flag idea as inappropriate…  ·  Admin →
                      • Add Posix ACL support to WSL and for drvfs mounts derive them from Windows ACL

                        Add Posix ACL support to WSL and for drvfs mounts derive them from Windows ACL. It is possible to map Posix ACLs to Windows ACLs with some limitations. That would greatly enhance interoperability between windows applications and wsl applications. Using metadata to save posix permissions on drvfs mounts greatly reduces interoperability, since windows applications are not aware of posix permissions saved as metadata.

                        References:
                        https://www.usenix.org/legacy/events/usenix03/tech/freenix03/full_papers/gruenbacher/gruenbacher_html/main.html

                        http://www.citi.umich.edu/u/marius/draft-eriksen-nfsv4-acl-01.txt

                        26 votes
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                          5 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                        • errors on Kali Linux......

                          Window 10 is the best os ever and Kali Linux is the best app ever on windows 10.....but there are many errors in Kali Linux wsl Microsoft.....there are many app which are not working.....like airmon-ng....nmap......and many more.....please fix this guys.....

                          4 votes
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                            1 comment  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                          • Option to change location of wsl

                            By default wsl is installing to the system drive. In much cases this is an SSD with less space than a second drive like a normal hdd with much more space. If you use wsl for development of a Website or try to use WSL with an x-server for windows much space is needed to take advantage of it. So there should be an option to move the wsl and all files containing to a drive where an user has much more space than on it's system drive by default.

                            3 votes
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                              0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                            • Add posix message queue support in WSL

                              Add Posix message queue support in WSL (Ubuntu). mq_open function is failing with error "Function not implemented"

                              7 votes
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                                2 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                              • Mount filesystems permanently from /etc/fstab

                                It's great that I can mount file systems or USB devices through drvfs but these mounts don't persists when all Linux shells are closed.
                                How does one mount filesystems permanently, say through /etc/fstab ?
                                Surely it shouldn't be necessary to manually mount filesystems after the last Linux shell has been closed and a new is invoked.

                                58 votes
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                                  3 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                                • Support *BSD operating systems.

                                  One of the benefits of WSL is that many server environments are Linux systems and the developer can validate many changes locally before deployment.

                                  Similarly, various *BSD variants (Free-, Open-, etc.) are also frequently used on servers and developers could benefit immensely from having similar functionality.

                                  This will likely be a larger item than allowing multiple Linux distributions on WSL due to the differences in system call structure.

                                  65 votes
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                                    4 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                                  • add Fedora to the Store

                                    maybe it's just a matter of priority coz i'm sure it's not technical as others are able to install Fedora on WSL using a long way.

                                    request to add Fedora in the Store please.

                                    2 votes
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                                      1 comment  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Add Windows Hello(e.g. fingerprint) support to WSL

                                      Please add Windows Hello support for WSL, so that we can use fingerprint rather than enter root password in WSL

                                      Thanks

                                      1 vote
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                                        0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                                      • Add a stat()-like API to Win32 to access WSL file attributres

                                        Git for Windows currently runs into problems with file attributes if you have a repo that you use both with WSL (under /mnt/c) and native Windows tooling. If it was possible to set and get Unix file attributes from Windows, it would make interop easier. This would be similar in spirit to the AF_UNIX socket support that was recently introduced.

                                        2 votes
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                                          0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Make it easy to NTFS-compress the WSL filesystem

                                          Users with SSDs can face space problems when they install packages with debug info. While it is easy to just NTFS-compress the files in Windows proper, WSL files need to be hunted down and compressed, all in an "unsafe" manner. Windows should provide an interface in WSL to transparently compress files with NTFS facilities.

                                          4 votes
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                                            0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
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