Combine steps one and two. There's no reason to separate them:
nano ~/.bashrc
For step #3:
. ~/.bashrc
. should be introduced to readers, not source. The source command is a bashism and should be avoided in favour of . so that readers gain a more generalized and useful knowledge.
Clarify that alias expansion is not standard POSIX and only works for bash in conjunction with the shopt -s expand_aliases bash option (which happens to be enabled by default). It's safe if you follow your steps because only bash will read ~/.bashrc, but I and some other people take examples from posts we read and apply them elsewhere, so this is important notice.
Two important edits:
Combine steps one and two. There's no reason to separate them:
For step #3:
.should be introduced to readers, notsource. Thesourcecommand is a bashism and should be avoided in favour of.so that readers gain a more generalized and useful knowledge.Clarify that alias expansion is not standard POSIX and only works for bash in conjunction with the
shopt -s expand_aliasesbash option (which happens to be enabled by default). It's safe if you follow your steps because only bash will read~/.bashrc, but I and some other people take examples from posts we read and apply them elsewhere, so this is important notice.Thank you very much for your feedback. I will take it into account.