unix不同shell

Linux/UNIX不同shell环境下数组的处理

unset varname[5]关于数组中元素的值的清除，即置空：bash和ksh下这样操作，不支持csh varname[5]=清除数组varname中的第六个元素关于数组的清除：适用于bash、ksh、csh等大部分shell。unset varname 向数组中添加元素：方法一、二只适用...

Linux/unix不同shell环境下数值运算的处理

不同shell(bash,csh,ksh)下如何处理数值的运算常用来数值运算的命令关于运算结果精确到几位小数点的问题运算方式一：$[]适用范围：只适用于bash，而sh(如solaris的默认shell)、ksh(如IBM AIX的默认shell)、csh都不支持。注意我们要计算...

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