Function inheritance in shell

In shell, we know that variables are inherited by the quilt process and can be directly used. In some cases, you may need to inherit functions to facilitate transparent use. the method is very simple. use export-f. pay attention to the parameter-f, which indicates the meaning of the function, export without parameters is only applicable to variables .... In shell, we know that variables are inherited by the quilt process and can be directly used. In some cases, you may need to inherit functions to facilitate transparent use. the method is very simple. use "export-f". pay attention to the parameter "-f", which indicates the meaning of the function, export without parameters is only applicable to variables. Function ifprop () {echo ": $1 = $2"} export-f ifprop can also use "typeset-fx" to replace "export-f"