[chengmo@localhost nginx]# awk 'BEGIN{ test=100; total=0; while(i<=test) { total+=i; i++; } print total; }' 5050 2.for 循环 for循环有两种格式: 格式1: for(变量 in 数组) {语句} 例子: [chengmo@localhost nginx]# awk 'BEGIN{ for(k in ENVIRON) { print k"="ENVIRON[k]; }...
⼆.循环语句(while,for,do)1.while语句 格式：while(表达式){语句} 例⼦：[chengmo@localhost nginx]# awk 'BEGIN{ test=100; total=0; while(i<=test) { total+=i; i++; } print total; }' 5050 2.for 循环 for循环有两种格式：格式1：for(变量 in 数组){语句} 例⼦：[chengmo...
一.条件判断语句(if) if(表达式) #if(VariableinArray) 语句1 else 语句2 格式中"语句1"可以是多个语句,如果你为了方便Unix awk判断也方便你自已阅读,你最好将多个语句用{}括起来。Unix awk分枝结构允许嵌套,其格式为: if(表达式) {语句1} else if(表达式) {语句2} else {语句3} [chengmo@localhost ng...
actions are body of the while loop which can have one or more statement. If actions has more than one statement, it has to be enclosed with in the curly braces. How it works?—Awk whileloop checks the condition first, if the condition is true, then it executes the list of actions. A...
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...
do while循环 python for循环 初值 嵌套 转载 小鱼儿 2023-07-04 09:15:39 506阅读 shell循环写redislinuxshell循环 一.shell循环:for1. 语法结构语法for 变量名 [ in 取值列表 ]do循环体 done示例 自动创建3个用户[root@localhost ~]# cat useradd-for.sh #!/bin/bash for i in {1..3}douseradd ...
Linux and most Unix-like environments Issue How do I generate a thread dump in JBoss while running on Linux? How do I generate a JBoss stack trace on Linux? How do I redirect output of kill -3 to a file? JBoss has high cpu usage, freezes, hangs, or doesn't release idle threads, ...
Java Do While Loop - Learn how to use the 'do while' loop in Java with examples and syntax explanations. Perfect for beginners and seasoned programmers.
1.do-while循环语句的几种用法 C语言中,有三种循环结构基本语句for、while、do-while。 do-while语句的一般形式为: do { 语句; }while(表达式); do-while语句功能解析: 1、先执行循环体中语句一次,然后再判定表达式的值,当值为真(非0)时,继续执行循环体语句的语句,依次类推; 2、直到表达式的值为假(为0...
flag to display the size of the subdirectory and its contents. in unix-based systems, you can use the "du" command with the "-sh" flag to show the summarized size of the subdirectory. can i create subdirectories within subdirectories indefinitely? in theory, you can create subdirectories ...