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  • See also: What is the difference between [[ $a == z* ]] and [ $a == z* ]? Commented Mar 7, 2013 at 12:40
  • Dang, usually the stackexchange interface saves me from posting duplicates, but this time it didn't: it showed exactly 0 suggestions for similar questions, which is pretty unusual, and maybe for this reason made me a bit over-confident... Sorry about that. Commented Mar 7, 2013 at 13:55