ABSG is always my answer to how to learn shell
Yes :) ABSG is good.. but do check out the other links too :)
Just googled ABSG and all I got was 'Adult Bible Study Guide'
Re:Ask HN: How can I get better at bash?
by yellowapple on Monday June 26, 2017 @12:27PM
(#14637995)
To really understand Bash, one's soul must be in tune with God.
Re:Ask HN: How can I get better at bash?
by AlexeyBrin on Monday June 26, 2017 @11:42AM
(#14637643)
http://tldp.org/LDP/abs/html/
Next time, try to google "absg shell".
http://www.tldp.org/LDP/Bash-Beginners-Guide/html/
EDIT : Additional links -
Advanced - http://tldp.org/LDP/abs/html/
Bash programming - http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO.html