Open files in Windows from within the Windows Subsystem for Linux (WSL)

open-wsl.sh

# Open files in Windows from within WSL.
function _windows_open()
{
    # Absolute, inside WSL, path to the file.
    local file=$(readlink -e "$1")
    if [[ ! (-f "$file" || -d "$file") ]]; then
        echo "error: no such file '$1'"
        return 1
    else
        # Convert slashes into backslashes.
        file=$(echo "$file" | sed 's/\//\\/g')
        # Absolute, outside WSL, path to the target file.
        local root="\\\\wsl\$\\Ubuntu"
        local target="$root$file"
        cmd.exe /C start "$target"
    fi
}

alias open=_windows_open