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In this final chapter on flow control, we will look at another of the shell’s looping constructs.The for loop differs from the while and until loops in that it providesa means of processing sequences during a loop. This turns out to be very useful when programming.Accordingly, the for ...
Caution:Please be careful if you use this method. You should not include the keyword “in” in the for loop. If you leave the keyword “in” without any values, it will not use the positional parameter as shown below. It will not go inside the loop. i.e for loop will never get ex...
for i in {1..10} ;do userdel -r user$i ;done 3、/etc/rc.d/rc3.d目录下分别有多个以K开头和以S开头的文件;分别读取每个文件,以K开头的输出为文件加stop,以S开头的输出为文件名加start,如K34filename stop S66filename start for files in /etc/rc.d/rc3.d/[KS]* ;do if [ `basename $f...
In this final chapter on flow control, we will look at another of the shell’s looping constructs. The for loop differs from the while and until loops in that it provides a means of processing sequences during a loop. This turns out to be very useful when programming. Accordingly, the ...
“for” loop in a sequence is said to be “nested”. Therefore, we have decided to use the “nested” for loops in Bash programming within our examples of today’s article. So, let’s start with the opening of the terminal shell in the Ubuntu 20.04 system via the “Ctrl+Alt+T” ...
for n in {1..7}; do echo $n done Once the shell script is executed, all the values in the range are listed, similar to what we had insimple loops. Bash For Loop with Ranges Example Additionally, we can include a value at the end of the range that is going to cause thefor loop...
In this article,we gained insights into utilizing multiple variables within a shell scriptforloop. First, we explored the C-styleforloops, characterized by their resemblance to the syntax used in the C programming language. This method is for managing more intricate loop control structures. ...
PowerShell是一种用于自动化任务和配置管理的脚本语言和命令行壳程序。它在云计算领域中广泛应用,可以帮助开发工程师简化和自动化一系列操作。 对于"Powershell For Loop In Reverse",回答如下: 在PowerShell中,使用for循环可以实现对一组元素的迭代。而"Powershell For Loop In Reverse"表示在PowerShell中如何逆序遍...
Let’s run this newly made Bash code within the terminal shell of Ubuntu 20.04 after saving it with Ctrl+S. After running this code with the “bash” instruction, we have got the below-shown output. The loop started from the value 1 and increment by 2 each time. Hence, it continues ...