A friend of mine has been trying to get me to learn awk, sed, perl or grep. Honestly I only have the patience for one at the moment, which do you think is the best (taking the ease of learning into account)?
Also, for general bash stuff, these are great, and IMO much better than the TLDP site that always ranks high on Google:
# search current and all child directories for files containing "bananas", case insensitive $ grep -ir "bananas" .
history | grep "git push"
history | awk '{a[$2]++}END{for(i in a){print a[i] " " i}}' | sort -rn | head2936 git 1166 cd 409 ll 343 ssh 302 l 279 vagrant 223 ls 201 la 151 cat 140 mkdir
history | awk '{print $2}' | sort | uniq -c | sort -rn
https://github.com/junegunn/fzf
It's a fuzzy searcher for Ctrl-r that shows all possible results, updating as you type.
But how do you then pipe that to tail? :D
What you can do is press Ctrl-R again and it will search the older match. There's also forward match but I can't recall the shortcut.