UNIX Shell 编程中条件判断是极为重要的,以下是常用的条件判断:
-b file 若文件存在且是一个块特殊文件,则为真
-c file 若文件存在且是一个字符特殊文件,则为真
-d file 若文件存在且是一个目录,则为真
-e file 若文件存在,则为真
-f [...]
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UNIX Shell 编程中条件判断是极为重要的,以下是常用的条件判断: -b file 若文件存在且是一个块特殊文件,则为真 由于google官方博客被墙了,所以转一下这篇google官方博客的文章 转自google英文官方博客: Like many other well-known organizations, we face cyber attacks of varying degrees on a regular basis. In mid-December, we detected a highly sophisticated and targeted attack on our corporate infrastructure originating from China that resulted in the theft of intellectual property from Google. However, it soon became clear that what at first appeared to [...] |
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