echo"Current $FUNCNAME, \$FUNCNAME => (${FUNCNAME[@]})"}functionanother_func(){echo"Current $FUNCNAME, \$FUNCNAME => (${FUNCNAME[@]})"}echo"Out of function, \$FUNCNAME => (${FUNCNAME[@]})"test_func echo"Out of function, \$FUNCNAME => (${FUNCNAME[@]})" 执行后的结果...
bash脚本退出代码解释 Exit Codes With Special Meanings Table E-1.ReservedExit Codes According to the above table, exit codes1 - 2, 126 - 165, and 255[1]have special meanings, and should therefore be avoided for user-specified exit parameters. Ending a script withexit 127would certainly cause...
A bash function can return a value via its exit status after execution. By default, a function returns the exit code from the last executed command inside the function. It will stop the function execution once it is called. You can use the return builtin command to return an arbitrary numb...
While ShellCheck is mostly intended for interactive use, it can easily be added to builds or test suites. It makes canonical use of exit codes, so you can just add ashellcheckcommand as part of the process. For example, in a Makefile: check-scripts:# Fail if any of these files have w...
($3+$4)) echo "sum is $sum" } param_function A B 2 3 5 # output: Hello World # parameter 1: A # parameter 2: B # parameters : A B 2 3 5 7 # sum is 5 # 可以看到, 即使函数内没使用参数也可以传递, 若使用了不存在的参数, 如 $4, 则默认为空 (不是空格) print_Hello2(...
avoids polluting the global name space and inadvertently setting variables that may have significance outside the function. Declaration and assignment must be separate statements when the assignment value is provided by a command substitution; as the local builtin does not propagate the exit code from...
readonly-f function_name 只读变量不能重新赋值,不能使用内置命令unset进行撤销,不能通过命令declare +r name取消只读属性。 内置命令read作用是从标准输入读入一行数据赋值给变量 代码语言:javascript 代码运行次数:0 运行 AI代码解释 [root@centos7~]# readNAME123#此处键入字符串"1 2 3"[root@centos7~]# ech...
简介： SubMenu：代表一个子菜单，包含1~N个MenuItem 实现效果： 具体实现方法： 主活动 MainActivity...
function my_funcname { code block } 或者 my_funcname() { code block } 上面的第二种写法更接近于 C 语言中的写法。BASH 中要求函数的定义必须在函数使用之前,这是和 C 语言用头文件说明函数方法的不同。 更进一步的问题是如何给函数传递参数和获得返回值。BASH 中函数参数的定义并不需要在函数定义处就...
function question(query?: string, options?: QuestionOptions): Promise<string> type QuestionOptions = { choices: string[] } 复制代码 1. 2. 3. sleep() 基于setTimeout 函数 await sleep(1000) 复制代码 1. 2. nothrow() 将$ 的行为更改, 如果退出码不是0,不跑出异常. ...