index b8bf618a30fd32a014e41e1ba9914f5e652bdefd..8346c1972be24abf4e4269b9171a0eb456c2895a 100644 (file)
- We use Arithmetic Expansion $(( ... )).
+ - Inside Arithmetic Expansion, spell shell variables with $ in front
+ of them, as some shells do not grok $((x)) while accepting $(($x))
+ just fine (e.g. dash older than 0.5.4).
+
- No "Substring Expansion" ${parameter:offset:length}.
- No shell arrays.