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Sorting strings

• To: mathgroup at smc.vnet.net
• Subject: [mg123101] Sorting strings
• From: Themis Matsoukas <tmatsoukas at me.com>
• Date: Wed, 23 Nov 2011 07:07:21 -0500 (EST)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com

Sorting this list of strings 

{"a1", "a2", "a20", "a12"} // Sort

I get

{"a1", "a12", "a2", "a20"}

but I would like the numerals to be sorted as numbers, i.e., as

{"a1", "a2", "a12",  "a20"}

Is this possible or do I have to rename "a1" into "a01" etc?

Thanks

Themis

• Follow-Ups:
  • Re: Sorting strings
    • From: Leonid Shifrin <lshifr@gmail.com>
  • Re: Sorting strings
    • From: Ulrich Arndt <ulrich.arndt@data2knowledge.de>
  • Re: Sorting strings
    • From: Bob Hanlon <hanlonr357@gmail.com>