else echo "Strings are not equal as expected." fi 测试脚本 将上述脚本保存到一个文件中,比如compare_strings.sh,然后赋予执行权限并运行它: bash chmod +x compare_strings.sh ./compare_strings.sh 你应该会看到输出表明str1和str2是相等的,而str1和str3是不相等的。 总结 Bash中判断字符串相等的方法...
#!/bin/bashread-p"Enter first string: "VAR1read-p"Enter second string: "VAR2if[["$VAR1"=="$VAR2"]];thenecho"Strings are equal."elseecho"Strings are not equal."fi 您还可以使用逻辑和&&和或||比较字符串: [["string1"=="string2"]]&&echo"Equal"||echo"Not equal" 如果你需要检查字...
String1 and String2 are equal.String1 and String2 are equal.String1 and String3 are not equal. 这里,如果我们先用=运算符比较String1和String2。由于String1和String2都具有相同的长度,具有相同的字符序列,比较运算符返回true,因此我们得到String1 and String2 are equal.作为程序中第一个if-else块的输出...
When writing Bash scripts you will often need to compare two strings to check if they are equal or not. Two strings are equal when they have the same length and contain the same sequence of characters.
Here is how you compare strings in Bash. if [ "$string1" == "$string2" ] You can also use a string directly instead of using a variable. if [ "$string1" == "This is my string" ] Let me show it to you with proper examples. ...
It is advisable always to check and compare if two strings are equal in a Bash script; this is quite important for different reasons. If two strings are equal in a Bash script, it implies that both strings have the same length and character sequence. The “if” statement is used to chec...
Check if Strings are Equal Use the=or==operators when checking if strings are equal. Follow the steps below tocreate a Bash scriptand compare two strings: Check Predefined Strings 1. Open the terminal (Ctrl+Alt+T) and create a new Bash script. We will use the vi/vim text editor: ...
To compare two strings in variablesxandyfor equality, use 要比较变量x和y中的两个字符串是否相等,请使用 if test "$x" = "$y"; then printf '%s\n' "equal" else printf '%s\n' "not equal" fi To test whetherxappears somewhere iny, use ...
Variables can be assigned with the equal sign (=) operator. Strings or numbers can be assigned to variables. The value of a variable can be accessed with the dollar sign ($) before the variable name. You can use the dollar sign and parentheses syntax (command substitution) to execute a ...
To compare strings in the shell scripting the string comparison operators=,==,!=are used. Let’s create a Bash script to take the username as input from the user and compare the name string with the hardcoded name. #!/bin/bash