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!

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  1. Support for sparse files in LxFS (flow type checker fails) WSL#1732

    This issue says it better than I can:

    https://github.com/Microsoft/WSL/issues/1732

    Real Linux:

    $ truncate -s 27927781376 foo
    $ ls -l foo
    -rw-r--r-- 1 ken ken 27927781376 Feb 27 21:00 foo
    $ du --block-size=1 foo
    0 foo

    WSL 15042:

    $ truncate -s 27927781376 foo
    $ ls -l foo
    -rw-r--r-- 1 ken ken 27927781376 Feb 27 21:00 foo
    $ du --block-size=1 foo
    27927781376 foo

    14 votes
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  2. WSL: Add Hardwaresupport for Video capture devices

    Hello,
    I want to use process my webcam stream via OpenCV. Apparently there is no support for webcams yet, as /dev/ is pretty empty.

    ´--- Opening /dev/video0...
    stat: No such file or directory
    ´

    47 votes
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    4 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  3. OpenCL & CUDA GPU support

    It would be nice to have (relatively) easy access to the dedicated GPU's on our Win10 PC's, and OpenCL support for the AMD Drivers & CUDA for NVidia drivers etc.

    What I am thinking on specifically (although there are many many uses for it and CUDA support) is hashing functions that are lackluster within windows itself, but benefit immensely within Linux and Unix.

    Cryptocurrency mining for example, is known to be much faster on Linux systems than Windows. Do you see any support for OpenCL and/or CUDA in the future?

    4,269 votes
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    453 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  4. Optimize disk I/O speed

    Due to administrative requirements, I cannot disable windows defender in the WSL directory - right now, all disk I/O is **very** slow (10x slower than native windows) - is disk I/O already fully optimized? 5-10x slower sounds pretty bugworthy.

    4 votes
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  5. Integrate with Crossmeta that provides BSD VFS

    Allow integration of Crossmeta BSD VFS driver with WSL and many of the problems voiced here can be solved. The Crossmeta system provides all the VFS related POSIX syscalls with BusyBox already within WIN subsystem itself.

    Related Links:
    BSD VFS information:
    https://github.com/crossmeta/sys

    FUSE for Windows. This is real FUSE port that supports Low-Level and High-Level interface of Linux fuse.
    https://github.com/crossmeta/cxfuse

    It already supports mounting XFS, EXT2/3/4, HFS+

    Supports loop back devices of files or VHD images(losetup)

    Raw disk access with PnP support for USB or Cloud Disks

    2 votes
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  6. A more specific instruction for heavy linux user

    WSL is quite nice, as a trial of break the barrier between windows for mature APPs and linux for developer needs.

    However, can you post a more specific instruction how to understand WSL. Especially when heavy ubuntu user trys to set some ubuntu features.

    From where can we find the whole system files, to how to use copy and paste correctly in WSL. All these macroscopic or microcosmic details are the key to the usability of WSL

    1 vote
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  7. Any plans for WSL on windows 10 phone?

    As a developer, being able to do tiny things, or SSH to a server, with a device always within arms reach would be really useful. I think this would renew interest Windows phone devices.

    1 vote
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  8. Support for Azure Service Fabric

    Please support Azure Service Fabric development in WSL2 as per: https://github.com/Azure/service-fabric-issues/issues/1201

    1 vote
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  9. lrzsz support in wsl console

    Most linux distributions offer the `lrzsz` package for uploading/downloading arbitrary files using the z-modem protocol. I use SecureCRT from VanDyke that allows:
    1. running a linux command such as `sz /etc/hosts` that drops the requested file(s) into a configurable local folder (e.g the windows desktop).
    2. drag'n'drop one or more files onto the terminal window invokes the `rz` linux command which receives the dropped files into the current linux folder (non-destructively) with their correct filenames.
    This highly useful functionality can be used within nested SSH sessions to pull/push arbitrary files between local windows folders and remote linux machines.

    1 vote
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  10. Shared memory between WSL and a Windows process

    Being able to map shared memory between a windows and a WSL process could be useful for writing hybrid Win API/Posix applications. Currently this is possible with sockets, but shared memory could enable a tighter integration.

    1 vote
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  11. WSL 2 make Hyper-V requirement optional.

    If you look at the following project
    http://www.colinux.org/

    They in fact got a Linux kernel running under windows without needing any hypervisor or cpu with hypervisor extensions.

    This in theory could be 1 Linux kernel.

    This would also mean you could fully deprecate wsl1 as it usage case would be fairly much covered by WSL 2 without the Hyper-V limitation. Hopefully this would free up resources to get wayland/x11 stuff working.

    1 vote
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  12. WSL multiple users

    I installed WSL on our 2016 Server. But other users get the message" Windows Subsystem for Linux has no installed distributions.
    Distributions can be installed by visiting the Microsoft Store:
    https://aka.ms/wslstore"
    How do I make BASH available to other users on the server?

    3 votes
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  13. Open bash in current folder from context menu

    I would love a right-click option in a folder to open the current folder in a WSL distro. right click to open in the folder C:\Users\account would open a terminal in /mnt/C/Users/account

    142 votes
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    7 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  14. New "Linux" kernel in June?

    Ok, I've got a question... how is the <quote>new linux kernel<endquote> going to affect this stuff? Because what I care about is full USB support, OpenCL and CUDA. If it's not going to fix those I'll drop this stuff and just install a real linux.

    1 vote
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  15. i386 support

    Currently it does not seem to be possible to execute 32-bit Linux ELF binaries in WSL environment. Generally this is not a big deal if the source of the program is available in a way or another, however, there is quite a lot of 32-bit proprietary tools that are distributed in binary-only form, and currently those are unusable within WSL.

    3 votes
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  16. need ability to use uinput for simulated HID events

    need the ability to run modprobe uinput but that fails with

    cicorias@cicorias-x1:~$ modprobe uinput
    modprobe: ERROR: ../libkmod/libkmod.c:586 kmod_search_moddep() could not open moddep file '/lib/modules/4.4.0-17763-Microsoft/modules.dep.bin'
    modprobe: FATAL: Module uinput not found in directory /lib/modules/4.4.0-17763-Microsoft
    cicorias@cicorias-x1:~$
    winver: 1809 17763.437

    What should happen is

    modprobe uinput # runs and returns 0

    # from the /dev path
    ls -al |grep input
    drwxr-xr-x 3 root root 160 Apr 25 04:47 input
    crw------- 1 root root 10, 223 Apr 25 04:47 uinput
    # should see uinput listed

    1 vote
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    0 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  17. wslpath should return \\wsl$ path

    Currently wslpath rejects path inside VolFs.

    2 votes
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  18. Recursive file case sensitivity?

    Can we get folder recursive case sensitivity? You've very recently added it with:
    fsutil.exe file SetCaseSensitiveInfo C:\folder\path enable
    what do we have to do to get full directory case sensitivity?

    It's really confusing as to why this isn't implemented yet when NTFS has supported it forever and windows 10 has no more kernel excuse...

    Is something like this necessary?

    [string] $PathRoot = 'folder here'

    [bool] $EnableCaseSensitivity = $true

    @(Get-ChildItem -Path $PathRoot -Recurse -Directory | Select-Object -ExpandProperty 'FullName') | ForEach-Object {
    cmd /c ('fsutil.exe file SetCaseSensitiveInfo "{0}" {1}' -f ($_,$(if($EnableCaseSensitivity){'enable'}else{'disable'})))
    }

    19 votes
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    2 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  19. Add framebuffer support (/dev/fb0)

    First of all, WSL is great! Thanks for this amazing feature!

    Now, please support frame-buffer device implementation, we develop many C/C++ apps that draws its graphs directly by open fb like this:

    int open_framebuffer(void)
    {
    const char *fbname;
    int ret;

    fbname = getenv("FB");
    if (fbname == 0)
    fbname = "/dev/fb0";

    ret = open(fbname, O_RDWR);
    if (ret == -1)
    ret = open("/dev/fb/0", O_RDWR);

    return ret;
    }

    WSL has no framebuffer device yet, so please bring us a complete fb0 device!

    14 votes
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    2 comments  ·  WSL/Bash  ·  Flag idea as inappropriate…  ·  Admin →
  20. support for ethtool

    When you run ethtool it replies with "Invalid argument"

    Exact command example: sudo ethtool -T eth0
    Example Output: Cannot get device time stamping settings: Invalid argument.

    This would be useful for testing timing applications e.g. LinuxPTP as a grandmaster to be used with the new W10 Client PTP support.

    1 vote
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