So I wrapped all the npx calls into a function and I called that function instead, like this:#!/bin/sh generate_book () { npx honkit pdf ./ ../books/$(basename $PWD).pdf npx honkit epub ./ ../books/$(basename $PWD).epub npx honkit mobi ./ ../books/$(basename $PWD).mobi ...
Absolute Path- Points to the full path for the file starting from the top of the hierarchy(/). For example, if you have the script named"first_script.sh"under your desktop then the absolute path will be"/home/username/Desktop/first_script.sh". Relative Path- In the relative path, the ...
# The script is:function_name() {echo"the function is called"echo'$0 is'$0echo'$1 is'$1echo'$2 is'$2echo'$# is'$#echo'$*'is $*echo'$@'is$@} function_name first second third# The result is:thefunctionis called$0is ./bash_ex.sh$1is first$2is second$#is 3 $* is first ...
param="Null"functionvarfield { localparam="abc"#param="123" # 改写Outer-param的值echo"In the function: param=[$param]"} varfield echo"Out of function: param=[$param]" 关于数组做实参、数组作返回值 array=(5 4 3 2 1) echo"The original array is: ${array[*]}"functionarray_add { lo...
$ type -a echoecho is shell builtinecho is /usr/bin/echoecho is /bin/echo 上面代码表示,echo命令即是内置命令,也有对应的外部程序。 type命令的-t参数,可以返回一个命令的类型:别名(alias),关键词(keyword),函数(function),内置命令(builtin)和文件(file)。
The Function of Comments in Programming and Scripting Almost all programming languages support the idea of comments, and Bash is no different. The comments play a crucial part in helping the readers understand your code in the future. Let’s discuss the benefits of adding comments to your scrip...
functiontotal_files{find$1-type f|wc -l}functiontotal_directories{find$1-type d|wc -l} 这下子,只要运行total_files dir/就可以数出文件数量,total_directories dir/就可以数出文件夹数量。虽然依然需要回滚,但是修改文件夹名称似乎简单了不少。(之后讲到循环的时候,就不需要手动回滚了) ...
定义函数:使用function关键字或直接使用函数名来定义函数都可以。函数体要由{}包围。 #!/bin/bash # 使用 function 关键字定义函数 function greet { echo "Hello, World!" } # 直接使用函数名定义函数 bye() { echo "Goodbye!" } 调用函数:使用函数名后跟一对()来调用函数。
Script arguments:red First arg:red.Second arg:.Numberofarguments:1 用户输入 如果你正在为自己或其他人编写Bash程序,那么获取用户输入的一种方式就是指定用户提供给程序的参数,正如我们在前一节中讨论的那样。你还可以通过使用read命令暂时停止程序的执行,要求用户在命令行上输入一个字符串。让我们写一个小脚本,...
for arg in "$@"循环遍历所有参数,并将每个参数赋值给变量arg,然后输出参数的值。 这个脚本可以通过以下命令来运行: 代码语言:bash 复制 ./script.sh arg1 arg2 arg3 输出结果如下: 代码语言:txt 复制 Number of arguments: 3 Argument: arg1 Argument: arg2 Argument: arg3...