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Transfer files between windows host and ubuntu guest on virtual box
Follow these steps to enable file sharing between windows host and ubuntu guest on virtual box machine:
Follow these steps to enable file sharing between windows host and ubuntu guest on virtual box machine:
- Install virtualbox guest additions ubuntu on the virtual machine running ubuntu.
- Then add shared folders as demonstrated in the following video.
- Then run the following command: replace yourusername with the user which you want to share the folder with.
$ sudo usermod -aG vboxsf yourusername
The following video demonstrate the procedure after installing virtualbox guest additions ubuntu.
Hope it helps.
Thanks.
Convert pptx to jpg in google colab (linux)
Using unoconv
I executed the following command.
!unoconv -f png file_name.pptx
But the above command flashed the following error.
unoconv: RuntimeException during import phase: Office probably died. Unsupported URL : "type detection failed"
Using libreoffice command line
I tried converting *.pptx file to *.pdf by using the following command. If it works, the pdf file can be converted to images later.
libreoffice --headless --convert-to pdf Math_Challenge_A0005.pptx
The above commands works with the following output on the screen.
onvert-to pdf Math_Challenge_A0005.pptx javaldx: Could not find a Java Runtime Environment! Warning: failed to read path from javaldx convert /home/dhiren/Downloads/Math_Challenge_A0005.pptx -> /home/dhiren/Downloads/Math_Challenge_A0005.pdf using filter : impress_pdf_Export Overwriting: /home/dhiren/Downloads/Math_Challenge_A0005.pdf
But there is one problem with this command. The output file is ill-formatted because libreoffice does not support/recognize all the features of microsoft office. For example, text blocks are resized in the pdf, backgraound images are visible which should not be visible.
Convert pdf to images using imagemagick
Install imagemagick. See installation instructions on the official website.
Execute the following command to convert the pdf file into images.
convert -density 400 -resize 3000^ file.pdf file%d.jpg
Convert pdf to images using pdf2jpg
credit: https://github.com/pankajr141/pdf2jpg
from pdf2jpg import pdf2jpg inputpath = "Math_Challenge_A0005.pdf" outputpath = folder_path # To convert single page result = pdf2jpg.convert_pdf2jpg(inputpath, outputpath, dpi=300, pages="1") print(result) # To convert multiple pages result = pdf2jpg.convert_pdf2jpg(inputpath, outputpath, dpi=300, pages="1,0,3") print(result) # to convert all pages result = pdf2jpg.convert_pdf2jpg(inputpath, outputpath, dpi=300, pages="ALL") print(result)
Install wacom driver in ubuntu
Follow the instructions:
-
- Download the latest driver from: https://github.com/linuxwacom/input-wacom/releases
- Extract the downloaded file.
- Use the following command to install.
if test -x ./autogen.sh; then ./autogen.sh; else ./configure; fi && make && sudo make install || echo "Build Failed"
- Then plug in the Pen Tablet and enjoy.
I hope this helps.
Thanks
How to write long division in latex?
How to write the long division in latex?
Here is a sample latex code for long division.
\begin{array}{r}
x+4\phantom{)} \\
x-2{\overline{\smash{\big)}\,x^2+2x+3\phantom{)}}}\\
\underline{-~\phantom{(}(x^2-2x)\phantom{-b)}}\\
0+4x+3\phantom{)}\\
\underline{-~\phantom{()}(4x-8)}\\
0+11\phantom{)}
\end{array}
The result of the above code looks like the image below.
Hope this helps.
Reach out to any other help.
Thanks and stay safe.
learnsharewithdp 