I have a local markdown file containing several links and I want that links head to local file like pdf.
I use the following syntax:
[my link](file:///C:/my_file.pdf)
But when I open my markdown file into a Firefox page and click on the link, nothing happens.
What exactly have I missed? Is it possible to open local file?
None of the answers worked for me. But inspired in BarryPye's answer I found out it works when using relative paths!
# Contents from the '/media/user/README_1.md' markdown file:
Read more [here](./README_2.md) # It works!
Read more [here](file:///media/user/README_2.md) # Doesn't work
Read more [here](/media/user/README_2.md) # Doesn't work
How are you opening the rendered Markdown?
If you host it over HTTP, i.e. you access it via http:// or https://, most modern browsers will refuse to open local links, e.g. with file://. This is a security feature:
For security purposes, Mozilla applications block links to local files (and directories) from remote files. This includes linking to files on your hard drive, on mapped network drives, and accessible via Uniform Naming Convention (UNC) paths. This prevents a number of unpleasant possibilities, including:
Allowing sites to detect your operating system by checking default installation paths
Allowing sites to exploit system vulnerabilities (e.g., C:\con\con in Windows 95/98)
Allowing sites to detect browser preferences or read sensitive data
There are some workarounds listed on that page, but my recommendation is to avoid doing this if you can.
You link to a local file the same way you link to local images. Here is an example to link to file start_caQtDM_7id.sh in the same directory as the markdown source:
After messing around with #BringBackCommodore64 answer I figured it out
[link](file:///d:/absolute.md) # absolute filesystem path
[link](./relative1.md) # relative to opened file
[link](/relativeToProject.md) # relative to opened project
All of them tested in Visual Studio Code and working,
Note: The absolute and relative to opened project path work in editor but don't work in markdown preview mode!
If you have spaces in the filename, try these:
[file](./file%20with%20spaces.md)
[file](<./file with spaces.md>)
First one seems more reliable
This is a old question, but to me it still doesn't seem to have a complete answer to the OP's question. The chosen answer about security being the possible issue is actually often not the problem when using the Firefox 'Markdown Viewer' plug-in in my experience. Also, the OP seems to be using MS-Windows, so there is the added issue of specifying different drives.
So, here is a little more complete yet simple answer for the 'Markdown Viewer' plug-in on Windows (and other Markdown renderers I've seen): just enter the local path as you would normally, and if it is an absolute path make sure to start it with a slash. So:
[a relative link](../../some/dir/filename.md)
[Link to file in another dir on same drive](/another/dir/filename.md)
[Link to file in another dir on a different drive](/D:/dir/filename.md)
That last one was probably what the OP was looking for given their example.
Note this can also be used to display directories rather than files.
Though late, I hope this helps!
Thank you drifty0pine!
The first solution, it´s works!
[a relative link](../../some/dir/filename.md)
[Link to file in another dir on same drive](/another/dir/filename.md)
[Link to file in another dir on a different drive](/D:/dir/filename.md)
but I had need put more ../ until the folder where was my file, like this:
[FileToOpen](../../../../folderW/folderX/folderY/folderZ/FileToOpen.txt)
If the file is in the same directory as the one where the .md is, then just putting [Click here](MY-FILE.md) should work.
Otherwise, can create a path from the root directory of the project. So if the entire project/git-repo root directory is called 'my-app', and one wants to point to my-app/client/read-me.md, then try [My hyperlink](/client/read-me.md).
At least works from Chrome.
Related
Many commands access files, and they usually take a path relative to ~/ which I gather is the "home" directory. In my case, C:\Users\Grant\AppData\Roaming\ which is where .emacs.d\ and my init files live.
This is great for Emacs, but not as useful for me. I typically would be over in C:\Users\Grant\Documents\ or my Python script files directory.
Also, I'm using Customize and typing in absolute file names for things like Org capture templates (currently anything I capture goes into files in one particular directory). Not that it's likely that these locations will change, but I was wondering if there are variables I can set for these places, which I can use in Customize or when invoking Dired - maybe some sort of environment variable? And if so, how can I refer to them when typing in a file name?
I'm modifying a large codebase written in C. This code is designed to be compiled and ran from an arbitrary working directory. This is so configuration files can be read and output written to/from the working directory, making it easier to organize the setup and outputs of the code.
The additions I've made to this code need to read data from a few data files. I would like to place these in the same directory as the .c file where they are read, with a directory structure as follows:
big_project/
|-- models/
| |-- my_file.c
| |-- my_data.txt
My problem comes in when trying to open this data file using relative paths. Typically relative paths are relative to the working directory, which would not work in my case since the working directory can be arbitrary. From inside my_file.c, how can I open my_data.txt for reading using relative paths?
Based on our conversation in the comments, you have several alternatives, which I'll list below from, IMHO, most to least desirable.
You never specified if you were in Windows, GNU+Linux, or were doing cross-platform development, but I'm sure you can adapt the suggestions to your platform.
Multiple and Custom Config Files (Recommended)
You could modify your program to look at your platform's standard location for program data and/or configuration files. For example, you could have it look for a standard config at /etc/<your-program>/default.conf in GNU+Linux or %APPDATA%\<your-program>\default.conf in Windows.
If different users need to use their own personal configs, the program could also be made to accept a config file path as an argument. For example:
GNU+Linux:
$ ./your-program --config ${HOME}/.your-program/my.conf
Windows:
> your-program.exe --config %userprofile%\your-program\my.conf
Note that the use of %userprofile% may change based on Windows versions and/or shells used (e.g. standard cmd.exe vs powershell).
Compiling in the Path (Not Recommended)
Based on your comments, a short-term workaround could be to compile the absolute path into it for the __FILE__ macro to give that back to you at runtime. As I said in my comment:
if you're completely sure about the program always being placed in the same directory for everyone, then you can set the absolute path shown by the __FILE__ macro if you send the full path when compiling; e.g. gcc $(pwd)/your-file.c, when it prints __FILE__ will show the full path it had at compile time, not run-time. (Can't add enough disclaimers here, though)
Please note that there're many reasons to not use this approach. I'm simply suggesting it as a short-term workaround to pull out of an existing crisis-level situation you may have, while you (hopefully) take a closer look at the more desirable approach to handle configurations and path-finding.
When I need to input a path in Codename One preferences, for example to set up the icon or the certificates to use, I use the browse button. However the path that is then filled up in the associated field leads to the jre (java runtime environnement) folder instead of the parent folder of the file I selected.
Moreover the path is preceded by "file:" where it should not be there.
Here is an example to make it clearer :
As a workaround I manually paste the folder path where the file I want to use resides, and then paste it in the field. So as it is a little bit annoying, I was wondering if I could do something to make it work as it should ?
Please note : my setup involves Eclipse Mars running under Linux 64 with Oracle's Java 8 JDK.
Any help appreciated,
This seems to be related to this issue, I wasn't able to reproduce it in full although I did fix the file: prefix. The paths I got were correct despite all my attempts.
My only guess is that this might be an issue that affected an earlier version of the tool so I've added a version number to the title (1.13 in my current version). If this still happens in the next plugin update and the title of the preferences is 1.13 or newer I'd like to know.
IS it at all possible to set the Google homepage to a file located on my USB pen drive?
I can link it though the file path, problem being the drive letter would change depending on the system it is plugged into so a hard coded homepage link wont work.
Im unsure of the syntax to use to make it upen the file -
%USBDRIVE%/Webfiles/index.html
The page is used to help new users navigate the USB pen and get the info/files they require as its aimed as users with next to no IT skills or disabilities
Thanks Guys
You've probably found a solution already, but just come across your question and I recently had the same scenario. I'm assuming you mean on PC.
I solved it as follows:
In the PortableGoogleChrome folder (after portable chrome is setup on the usb drive), there is a default file called parameter.txt. I added the following in order to set the homepage to my local file. It is in a sub folder called 'resources' located on the usb drive root:
--homepage="\resources\index.html"
That's all for the parameter.txt file. That takes care of the homepage setting.
Now to launch portable chrome, I created a windows batch file called launcher.bat also at the root of the usb drive (call it whatever you like obviously!). I added the following code:
#echo off
cd PortableGoogleChrome
"ChromeLoader.exe"
The launcher file changes the directory to PortableGoogleChrome and then loads Chrome via ChromeLoader.exe which takes in your homepage or other parameters in Parameters.txt.
FINALLY, in order to create an application to replace the Launcher.bat file (as I figured a windows application with icon would be more intuitive to run than the batch file), I found a windows utility called bat_to_exe_converter which enabled me to convert the bat to an exe and supply an icon also (having tried to do so in C++, C# but errors because of needing supporting DLL's, this was much more straightforward).
Hope that's of use!
This is starting to vex me. I recently decided to clear out my FTP, and stumbled across an old Wordpress install I forgot I had (oh yes, very security conscious me). Anyway, for some reason deleting the directory failed so I investigated to see what was causing the blockage and I've narrowed it down to a file in wp-content.
Now when I try to delete this file I can get two errors. I've tried in Windowx Explorer (FTP) and the Web Control Panel's File Manager. Here's some error shots:
As you can see my File manager thinks the file is a Symbolic Link. While it scares me that
my web server is host to an obviously religoious artifact I'm also heavily confused by the situation.
I've tried renaming the file.
I've refreshed the FTP view.
I've tried moving the file to another dir (which worked, no success on deletion though).
I've tried editing the file and then deletion.
And I'm at a loss. Is there a special way to delete SymLinks? I've never heard of them, until now.
edit
Oho Windows you really are a magician of sorts. I decided to take a look at my FTP via command prompt and guess what? The file doesn't exist. Whether ftp ignores symlinks I don't know but I'm about to give up :P
First of all, try emailing your webhost either for SSH-access or to remove the symlink for you.
If you get SSH-access, use:
unlink index.php
Or if neither works: Create a PHP file there (for instance remove.php) that contains:
<?php unlink("./index.php") ?>
Then open that file in your browser, afterwards remove the remove.php file.