Created
October 31, 2013 21:41
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Ruby で指定したコマンドがあるか調べる ref: http://qiita.com/takuya_1st/items/b86278175d797d04ef00
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| def cmd_exists?( name ) ;` type "#{name}" 2> /dev/null` != "" ; end | |
| alias cmd_exists cmd_exists? |
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