If you are first using the generate_cloud.sh, please first install the following tools: 1.Entrez Direct-----------https://www.ncbi.nlm.nih.gov/books/NBK179288/ 2.word_cloud--------------https://github.com/amueller/word_cloud
To see help message about the script, please excute it without any options.
ATTENTION: Right now, for the mask option, you can only use circle.
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