Sorry, but I am beginner.

13 Permission denied
13 Permission denied
EACCES
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~/Documents$ mkdir delete
/usr/local/man$ mkdir deleteme
mkdir: cannot create directory `deleteme': Permission denied
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After that I realized that it must be something related to sudo: Thanks for making me realizing that.

So, should I always use? : sudo perl -MCPAN -e shell or sudo apt-get install libgoo-canvas-perl

As farang, said, there is risk of messing with System perl