string2="world" if [ "${string1}" = "${string2}" ]; then echo "Strings are equal." else echo "Strings are not equal." fi if [ "${string1}" != "${string2}" ]; then echo "Strings are different." else echo "Strings are the same." fi 参考链接 Bash String Comparison Bash ...
bash if 字符串比较 文心快码BaiduComate 在Bash 中进行字符串比较是编写脚本时常见的需求。以下是对 Bash 字符串比较操作的详细解释,包括常用的运算符、示例代码及其工作原理,以及执行和验证结果的方法。 1. Bash 中的字符串比较操作 Bash 中的字符串比较通常使用方括号 [] 或双方括号 [[ ]] 来实现。其中,[]...
Example 2: Check if strings are not equal in Bash Instead of checking the quality, let’s do the opposite and check the inequality. Bash also provides the negation operator so that you can easily use “if not equal” condition in shell scripts. if [ "$string1" != "Not MyString" ] ...
if [[ "$stringA" == *$stringB* ]]; then # Do something here else # Do Something here fi Run Code Online (Sandbox Code Playgroud) 重要的是通配符只能在右侧使用!还要注意通配符周围缺少的"".(顺便说一下:通配符为+1!) (12认同) 必须引用扩展`$ stringB`**(顺便提一下,左手边不需要引用)...
In this article, we will explain string comparison in Bash using if statement. The shell program that runs in Linux and provides a command line interface for users to execute different commands is called Bash shell. It is also used as the default shell in many Linux distributions and is call...
Example 2: String Comparison !/bin/bash name="Alice" if [ "$name" == "Alice" ] then echo "Hello, Alice!" else echo "You are not Alice." fi Example 3: File Check #!/bin/bash file_path="/path/to/file.txt" if [ -f "$file_path" ] ...
public static boolean equals(String str1, String str2) Compares two Strings, returning true if they are equal. nulls are handled without exceptions. Two null references are considered to be equal. The comparison is case sensitive. StringUtils.equals(null, null) = true ...
问Bash脚本比较if语句中的字符串和变量ENbash中的变量
if [ expression ]; then statements elif [ expression ]; then statements else statements fi the elif (else if) and else sections are optional Put spaces after [ and before ], and around the operators and operands. Expressions An expression can be: String comparison, Numeric comparison, File ...
The different types of comparison operators, logical operators, and options are used with the “if” statement for testing. The uses of the “-z” and “-n” option to test the string values using the “if” statement in Bash are shown in this tutorial. Using the “If -Z” Statement ...