Shell 循环语句 for循环 原创 云丽周阿 10月前 353阅读 linuxshelldowhile循环 在Linux系统中,Shell脚本是一种非常重要的编程语言,可以用于自动化执行各种任务。而在Shell脚本中,循环是一种非常基本且常用的结构。其中,dowhile循环是一种特殊的循环结构,它先执行循环体中的代码,然后再判断循环条件是否成立。接下来我...
–Awk Do whileloop is called exit controlled loop, whereas awk while loop is called as entry controlled loop. Because while loop checks the condition first, then it decides to execute the body or not. But theawk do whileloop executes the body once, then repeats the body as long as the ...
3、使用while do done实现计算1+2+3+...+100和的程序: #!/bin/bash #Program: # Use loop to calculate "1+2+3+...+100" result #History:2017/01/11 shu First release PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/bin export PATH s=0 #设置变量 i=0 while...
Loops are an important building block in a shell script which allows to iterate over a section of code. The bash loop constructs include the for loop, while loop, and until loop. 👉 Sometimes, you may find references to a select loop in bash. It is not part of the bash loop ...
However, the script block runs only while the condition is false. The continue and break flow control keywords can be used in a Do-While loop or in a Do-Until loop. Syntax The following shows the syntax of the Do-While statement: PowerShell Copy do {<statement list>} while (<...
Run JavaScript code from Python (EOL: https://gist.github.com/doloopwhile/8c6ec7dd4703e8a44e559411cb2ea221) Topics python Resources Readme License MIT license Activity Stars 716 stars Watchers 25 watching Forks 114 forks Report repository Releases 8 tags Packages No packages publish...
bash/ shell脚本while语句 、 我是shell编程的新手...基本上我是一个新手,但我需要一个简单的脚本来做while循环和执行一个php脚本。我尝试过以下几种方法:i=0do(( i++ ))但是由于某些原因,语法不是很好...我收到错误行4:在意外标记‘`do’附近出现<em ...
综上所述,我们可以通过使用do-while循环节点进行12次循环来方便的计算每月的数据,同时使用3个SQL节点分别计算近1月(30天)、近2月(60天)、近3月(90天)的数据。通过使用${dag.loopTimes}来代表当前循环到第几个月,从而在SQL节点中计算出当月第1天的分区及前1月第1天、前2月第1天、前3月第1天的分区。最...
To prevent an infinite loop that never stops, add a scriptblock code incrementing the counter by 1 for each iteration. The loop returns 0 through 9, which is the value of $counter at the time of each iteration. Now, let’s cover a real example. For this while loop, it’s pinging ...
Oh, yeah. We are now ready for theDo…While…Loopin Windows PowerShell. We use theDostatement and open a set of braces (curly brackets). Inside these curly brackets, we have what is called a script block. The first thing we do is index into the array. On our first pass thro...