This problem involves writing a Bash script that defines a function named "divide()" to calculate and return the division of two given numbers. The function should take two arguments, divide the first number by the second, and return the result. The script should also handle the case where ...
Although bash has a return statement, the only thing you can specify with it is the function's status, which is a numeric value like the value specified in anexitstatement.The status value is stored in the $? variable. If a function does not contain a return statement, its status is se...
/bin/bash funWithReturn(){echo"The function is to get the sum of two numbers..."echo-n"Input first number:"read aNumecho-n"Input another number:"read anotherNumecho"The two numbers are $aNum and $anotherNum !"return $(($aNum+$anotherNum)) } funWithReturn # Capture value returnd...
return 用来退出函数并返回到调用函数的地方。如果没有给 return 指定参数,返回的函数值就是最后一行的退出状态值。Return 返回的值只能是 0~256 之间的整数,且该值保存在“ ?”中,同时可以使用命令替换来捕捉函数的输出,即把整个函数放在括号内,前面加$(即:$(function_name)),或者通过引号把输出赋值给一个变量。
export -f function_name 5.2、函数参数和返回值 (1)内建local函数: local创建的变量只在函数内部使用,退出函数变量即实效。 (2)参数: 通过位置参量可以向函数传递参数,该参数不会影响函数外使用的任何位置参量。 (3)内建return函数: return用来退出函数并返回到调用函数的地方。如果没有给return指定参数,返回的函...
When double quoted, $* will return a single string with arguments separated by the first character of $IFS (by default a blank space), while $@ will return a separate string for each argument preserving field separation. #!/usr/bin/bash # example.sh fn() { echo "My function first ...
为了运行bash，首先要进行几步操作。首先，需要获得Windows10的build 14316。 安装内测版本之后，用户需要...
function check_digits() { if [[ "$1" =~ [0-9] ]]; then echo "All digits." else echo "Not all digits." fi } check_digits "$1" 这个脚本在=~操作符右边提供的正则表达式是[0-9],对应 0 到 9 之间任意一个数字,但是只对应一个数字。
return ( ( (( aNum+$anotherNum)) } funWithReturn Capture value returnd by last command ret=$? echo “The sum of two numbers is $ret !” [root@www tmp]# ./7.sh The function is to get the sum of two numbers… Input first number: 6 ...
This is my first shell function! ---Finished--- 下面定义一个带有return语句的函数: #!/bin/bash funWithReturn(){ echo "This function will add the two numbers of the input..." echo "Enter the first number: " read aNum echo "