I discovered a great resource for various bash tips and tricks called
Despite the name, it also has plenty of tips and tricks in addition to various “oneliners”.
It has sections on how variables and math work in bash. A varied assortment of commands
are covered as well. I only read part of it and I have already learned a ton.
For example, did you know you can have
grep print out lines before and after the match?
(Exampled copied from Bash-Oneliner)
# return also 3 lines after match grep -A 3 'bbo' # return also 3 lines before match grep -B 3 'bbo' # return also 3 lines before and after match grep -C 3 'bbo'
This is an awesome resource for anyone familiar with bash. However, it should be noted that this is not a beginner’s guide to bash as it assumes some level of bash knowledge.