Batch renaming files in command line and Xargs

Question

So, I have the following structure:

.
..
a.png
b.png 
c.png

I ran a command to resize them

ls | xargs -I xx convert xx -res         


        

Answer 1

My attempt from: https://www.tecmint.com/linux-image-conversion-tools/

ls -1 *.png | xargs -n 1 bash -c 'convert "$0" "${0%.png}.jpg"'

Using parallel

parallel convert '{}' '{.}.jpg' ::: *.png