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I know its not much but is very useful in time consuming scripts (cron, rc.d, etc).
There are 3 alternatives - vote for the best!
If you can do better, submit your command here.
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On my system, it is not equivalent to "ls *" because "ls *" displays the contents of directories while "echo *" only displays there name. From what I see, "echo *" is equivalent to "ls -d * | tr '\n' ' '". That said, it's a useful trick when you only have files, although "find . -maxdepth 1" is also very fast.
I may have aliased my ls which might be why I thought it was equivalent