for var1 in list1 do for var2 in list2 do # 在这里执行循环体的操作 done done 其中,list1和list2分别表示需要遍历的两个列表,var1和var2是循环变量,可以在循环体中使用。在循环体中,可以执行相应的操作,例如打印输出、文件处理、调用其他命令等。 这种一次两个for循环的结构可以用于处理多维数据结构、嵌...
Bash中的for循环是一种控制结构,用于重复执行一段代码块,直到满足特定条件。其基本语法如下: 代码语言:txt 复制 for variable in list do # 执行的命令或代码块 done 可能的原因及解决方法 如果for循环只执行了一次迭代,可能是由于以下几个原因: 列表为空:如果list为空,那么for循环将不会执行任何迭代。
(as in chmod), not a=rwx - umask -p, --parents no error if existing, make parent directories as needed -v, --verbose print a message for each created directory -Z set SELinux security context of each created directory to the default type --context[=CTX] like -Z, or if CTX is ...
command:命令 publicstaticvoidCreateBash(intbashCount, List<string> command) {try{vardata = Convert.ToInt32(Math.Ceiling((double)command.Count /bashCount)); Parallel.For(0, bashCount, (i) =>{ Process p=newProcess();//设置要启动的应用程序p.StartInfo.FileName ="bash";//是否使用操作系统she...
1. fvt-setup-1:Toperform initial setup.2. fvt-server-2:Toperform server commands.3. fvt-client-3:Toperform client commands.4. fvt-cleanup:Tocleanup the temporary files,inordertoprepareforthe repetitionofthe above test cases. 4. 在每个 shell 脚本中提供注释和说明 ...
How to sort the elements of an Array in a shell script? You can easily implement a Bubble sort algorithm with a bash function to sort an indexed array (list). This sorting algorithm is called a comparison sort. It iterates over each item of an array using a bash for loop and until ...
In this example find command returns the list of files, from which each file will be processed through a loop. For each item, it creates the directory with the name of the zip file, and copies the zip file to the newly created directory and unzip the zip file from there. ...
It can be difficult to debug a shell script that depends on common libraries sourced into your script or when loaded from your .bashrc in interactive mode. Functions with a conflicting name can quickly become an issue and override each other. Though, there is some way to trace, debug, and...
Bash C Style For Loop You can use variables inside loops to iterate over a range of elements. This is whereC-styled for loopscome in. The following example illustrates aC-style for loopthat prints out a list of numerical values from 1 to 7. ...
The variable name is set to each ele- ment of this list in turn, and list is executed each time. If the in word is omitted, the for command exe- cutes list once for each positional parameter that is set (see PARAMETERS below). The return status is the exit status of the last ...