A few more interesting / useful links …
17 Bash Pitfalls and (from the same site) BashFaq
Also the SED FAQ at SourceForge, which I hadn’t come across before today (the FAQ that is, not SourceForge!): http://sed.sourceforge.net/sedfaq.html (to go with http://sed.sourceforge.net/sed1line.txt which I plugged previously)
