There are so many resources available for free online! Here, I am sharing the websites that were very useful for me when I was starting out:
HPCC new user tutorial: https://hpcc.okstate.edu/sites/default/files/Files/tutorial.pdf
HPCC Education Resources: https://hpcc.okstate.edu/content/hpc-education-resources
Data Carpentry website http://www.datacarpentry.org
OSU offers Data Carpentry Workshops every semester (they are free, go take them whenever you can!)
DataCamp shell: https://www.learnshell.org
Unix for begginers: http://www.ee.surrey.ac.uk/Teaching/Unix/
Unix cheat sheet: https://files.fosswire.com/2007/08/fwunixref.pdf
‘Awk’ cheat sheet for fasta manipulation: https://www.cheatography.com/melissamlwong/cheat-sheets/awk-one-liners-for-fasta-manipulation-version-1-0/
BioStar forum: https://www.biostars.org