可以通过ls -l /bin/*sh命令看到: 所以在使用sh命令执行脚本的时候实际使用的是 dash,而 dash 不支持这种 C 语言格式的 for 循环写法。 解决方法:使用bash代替sh运行脚本: bash test.sh
1、第一个简单的for循环 #!/bin/bash for i in 1 2 3 4; do echo $i; done 2、测试for的自增长的循环: #!/bin/bash for ((i=1; i<=5; i++)) do echo $i; done 如果会报错,没有则跳过: Syntax error: Bad for loop variable 原因:代码对于标准bash而言没有错,因为Ubuntu为了加快开机速度...
A for loop in C++ is a control structure that is used to repeat a block of code for a specific number of iterations. It consists of three main components: initialization, condition, and increment/decrement. 20 mins read A loop in computer programming allows programmers to run a block of ...
For Loop SyntaxExample 1Suppose you want to reverse the {Customer.Customer Name} string. For example, "City Cyclists" becomes "stsilcyC ytiC".复制 Rem Reverse a string version 1 formula = "" Dim strLen strLen = Len ({Customer.Customer Name}) Dim i For i = 1 To strLen Dim charPos...
第一种的具体做法就是,原来的for循环类似这种 for(( i=1; i<3; i++)),改成类似这种的:for i in `seq 1000`,这是从一个网友的博客上抄来的,我不知道是否等价。但是看着后者满脸黑人问号,毕竟我是写的java多一些,所以根本不知道后者是什么意思。
The big thing I needed to understand is how to loop through a list (or table column as you've done here) and iterate over another data source (table in this case) and your example helps me greatly. Thank you! For anyone reading this, I think Dan's second query needed one ...
for For loop iteration. For Loops forceLiterals Used in select statements to reveal actual values that are used in where clauses to the Microsoft SQL Server database at the time of optimization. Select Statement Syntax forceNestedLoop Forces the SQL Server database to use a nested-loop algorith...
syntax error: Bad for loop variable 解决办法,在deepin下跑一个测试脚本,提示for循环的语法错误:syntaxerror:Badforloopvariable 2014版本deepin是基于ubuntu,2015版deepin基于debian,问题应该出现再dash上,dash是Debian的版本。解决方法是:取消dashsudodpkg
If your GitHub Pages site fails to build because of invalid syntax in the Liquid for loop declaration, you'll get an email that looks like this: Subject: Page build failed The page build failed with the following error: There is a syntax error in the 'for' loop in index.html. Valid ...
sh14.sh: 9: Syntax error: Bad for loop variable"错误时，通常代码在标准bash环境中并无问题，但Ubuntu采用dash替代bash以提升开机速度，进而引发此错误。解决办法是取消dash的使用：执行命令 sudo dpkg-reconfigure dash 在配置选项中选择"No"即可。以上步骤可帮助您解决在Ubuntu系统中遇到的此错误。