return_var='original return_var' pass_back_a_string return_var echo $return_var function call_a_string_func() { local lvar='original lvar' pass_back_a_string lvar echo "lvar='$lvar' locally" } call_a_string_func echo "lvar='$lvar' globally" 这给出了输出: 烫珊 上面的所有答案都忽...
# syntax.sh# Declaring functions using the reserved word function# Multilinefunctionf1 {echoHello I\'m function 1 echo Bye! } # One line function f2 { echo Hello I\'mfunction2;echoBye!; }# Declaring functions without the function reserved word# Multilinef3() {echoHello I\'m function 3...
Define and call a function: //script.sh greet() { echo "hello world"} greet// call a function Pass parameters to the function: greet() {echo"$1 world"} greet"hello" $1: means the first param passed in to the function. Get the return value: ...
函数的返回代码只能是0到255之间的值。要将此值存储在变量中，必须执行以下示例中的操作：...
How to Declare and Call a Function in the Terminal? To declare and use a function in the terminal: 1. Open the terminal and enter the following line: my_function () { echo "Hello I'm a function"; echo "Bye!"; } 2. Execute the function by entering the function's name in the te...
Return value in a Bash function; Difference between return and exit in BASH functions; 备注 source:How to include file in a bash shell script? source *filename* [arguments] Read and execute commands fromfilenamein the current shell environment and return the exit status of the last command ...
示例1: test_return_value ▲点赞 7▼ deftest_return_value(self):bash_operator =BashOperator( bash_command='echo "stdout"', task_id='test_return_value', dag=None) return_value = bash_operator.execute(context={}) self.assertEqual(return_value,u'stdout') ...
To return the array from a function in Bash: Use the function keyword to define a function. Inside the function: Declare and initialize an array. To ensure the local scope, we used the local keyword. Use the echo command to print the entire array. Call the function created in the first...
return $result } #Call the function multiply_number #Print the returned value echo "The multiplication of $n1 and $n2 is $?" Output: The following output appears after executing the script for the input 5 and 3. The multiplication result of 5 and 3 is 15: Go to top Define a Function...
Find where a bash function is defined In many cases, it may be useful to find out where a function has been defined so you can either fix or update it. Though, either in the interactive or non-interactive mode, you can’t easily trace a specific function. In bash, you will need to...