## 'linkread' or 'fullpath' or (you choose) is a little tool to recursively ## dereference symbolic links (ala 'readlink') until the originating file ## is found. This is effectively the same function provided in stdlib.h as ## 'realpath' and on the command line in GNU 'readlink...
builtin below) and shellfunctiontracing (see the description of the -o functrace option to the set builtin below).--dump-po-strings Equivalent to-D, but the output isinthe GNU gettext po (portableobject)fileformat.--dump-strings Equivalent to-D.--help Display a usage message on standard ...
forOutputin$(ls)docat"$Output"done# while 循環:while[true]doecho"loop body here..."breakdone# 你也可以使用函數# 定義函數:functionfoo(){echo"Arguments work just like script arguments:$@"echo"And:$1$2..."echo"This is a function"return0}# 更簡單的方法bar(){echo"Another way to declar...
主观上，比起function do_task {，更喜欢do_task() {，除非您真的想与ksh兼容。在这种情况下，我建...
In the exercise above, Define a function called "factorial()" using the factorial() { ... } syntax. Inside the function: Declare a local variable 'num' to store the argument passed to the function. Declare another local variable 'result' and initialize it to 1. ...
\7. 你也可以将冒号作为函数名,不过这个会将冒号的本来意义转变(如果你不小心作为函数名,你可以使用unset -f : 来取消function的定义)。 12. ! 感叹号-取反 感叹号(reverse (or negate) [bang],[exclamation mark])。 取反一个测试结果或退出状态。
The exit status of a function definition is zero (success) unless another read-only function with a similar name already exists or a syntax error occurs. How to define and use functions in Bash? You can define functions in your .bashrc file with your other bash alias. In a shell script,...
echo"This function will add the two numbers of the input..." echo"Enter the first number: " readaNum echo"Enter the second number: " readanotherNum echo"The two numbers are $aNum and $anotherNum !" return$(($aNum+$anotherNum)) ...
/bin/bashecho"The name of the file is: $0 and it is going to be self-deleted"rm-f $0 8. Bash 数组 如果你曾经做过任何编程,你可能已经熟悉数组。但为了防止你不是开发人员,与变量不同,数组可以在一个名称下保存多个值。 可以通过将值赋值给由空格分隔并包含在()中来初始化数组。例子:...
bash 中的条件语句，基础就是 Test 。 if 先来个实例： x=5; if [ $x = 5 ]; then e...