摘要: The shell treats several parameters specially. These parameters may only be referenced; assignment to them is not allowed.*Expands to the positional parameters, starting from one. When the expansion o... 阅读全文
posted @ 2010-10-11 16:19 卜海清 阅读(454) 评论(0) 推荐(0)
摘要: IFS是bash的内部变量,称为内部域分隔符.这个变量用来决定Bash在解释字符串时如何识别域,或者单词边界.下面是转载的文章:(1)什么是IFS ?IFS是bash的内部变量,称为内部域分隔符.这个变量用来决定Bash在解释字符串时如何识别域,或者单词边界.(2)如何查看当前的IFS值?tekkaman@tekkaman-desktop:~/working/abs_test/IFS$ echo"... 阅读全文
posted @ 2010-10-11 14:20 卜海清 阅读(177) 评论(0) 推荐(0)