For me, somewhat surprisingly, the best bash resource I've come across is the manpage. If you haven't read this and have instead relied on any other resource,

For me, somewhat surprisingly, the best bash resource I've come across is the manpage. If you haven't read this and have instead relied on any other resource, I would recommend spending some time to read the bash manpage before deciding to give up on it. To me this has transformed bash from what I once considered a cryptic ugly mess to one of my favourite languages to write even relatively general-purpose code on. The help command is the only other resource you need, imo.