In this example, the script first checks if the number is greater than or equal to 5. If it is, it then checks if the number is less than or equal to 15. If both conditions are true, it prints “The number is within the range.” If the number is not within the range, it print...
If you can enter commands into the shell, you can write shell scripts (also known as Bourne shell scripts). A shell script is a series of commands written in a ...
有关详细信息,请参阅about_Logical_Operators。 重定向运算符 使用重定向运算符(>、>>、2>、2>>和2>&1)将命令或表达式的输出发送到文本文件。 重定向运算符的工作方式类似于Out-Filecmdlet(不含参数),但它们还允许将错误输出重定向到指定的文件。 也可使用Tee-Objectcmdlet 重定向输出。
about_Logical_Operators 项目 2025/03/25 本文内容 简短说明 长说明 另请参阅 简短说明 介绍连接 PowerShell 中的语句的运算符。 长说明 PowerShell 逻辑运算符连接表达式和语句,允许使用单个表达式来测试多个条件。 例如,以下语句使用 and 运算符和 or 运算符来连接三个条件语句。 仅当 $a 的值大于 $b 的值...
$MATCHES The $Matches variable works with the -match and -notmatch operators. $MYINVOCATION $MyInvocation is populated only for scripts, function, and script blocks. PSScriptRoot and PSCommandPath properties of the $MyInvocation automatic variable contain information about the invoker or calling scr...
&& 逻辑与, || 逻辑或 (Logical Operators) 双&&符号在Bash中意思是逻辑与(AND),并且可以用来分隔几个顺序执行的命令。 举例: # cd /root/ && echo "I've got root" 具体看这里。 & 后台工作 (Single Ampersand) ...
7.6 Multiplicative operators 7.7 Additive operators 7.8 Comparison operators 7.9 Bitwise operators 7.10 Logical operators 7.11 Assignment operators 7.12 Redirection operators...
about_Logical_Operators about_Member-Access_Enumeration about_Methods about_Modules about_Module_Manifests about_Numeric_Literals about_Objects about_Object_Creation about_Operators about_Operator_Precedence about_Output_Streams about_PackageManagement
Math operator in a Shell Script Operators The shells use arithmetic operators from the C programming language, in decreasing order of precedence.Math Operators
about_Logical_Operators about_Member-Access_Enumeration about_Methods about_Modules about_Module_Manifests about_Numeric_Literals about_Objects about_Object_Creation about_Operators about_Operator_Precedence about_Output_Streams about_PackageManagement about_Parameters about_Parameters_Default_Values about_...