Just ran across Kalanand’s November 2013 Log at http://kmishra.net/log/1311/log.html . A nice tutorial/reference to awk, sed, and friends. With those plus bash, there’s not much you can’t do!
PS- please let me know in the comments if this blog has too many exclamation marks! ;). I only post things I enjoy or am excited about, with possibly predictable results.