How to delete a* file with out deleting file name starting with a?

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http://www.unix.com – Hi, I have a query: I have a bunch of files starting letter with 'a' (example: abhi,all,anand,animal,a1.txt,allow.java,a*) here i want to delete/remove only a* folder but not other files and folders. and a* folder is present in so many other folders. what is unix command to delete above query. :) Thanx. (HowTos)