目录shell脚本判断文件是否存在shell脚本之文件是否存在、权限校验判断目录是否存在判断文件是否存在判断目录/文件是否存在判断文件权限判断文件是否属于当前用户判断文件是否与当前用户相同用户组比较文件之间是否为
I\'ve been writing Windows Services for a while and they always seem to work fine for things that开发者_开发问答 need to run every day, few times a week, once a month, etc. but I\'ve been lately think
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