To check if two strings are equal in a Bash script, there are two comparison operators used. First, we’ll discuss the “==” operator. The “==” operator is used to check the equality of two bash strings. In the example below, two strings are defined: strng1 and strng2. Also, ...
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.
Check if strings are equals The '=' operator checks if string1 equals string2. If the two strings are equal, then it returns 0; if the two strings are not equal, then it returns 1: $ [ "sam" = "SAM" ] && echo $? || echo $? In this case, the expression is slightly differen...
Example 1: Check if two strings are equal If you want to check if two strings are equal, here’s an example: #!/bin/bash string1="MyString" string2="MyString" if [ "$string1" == "$string2" ] then echo "Equal Strings" else echo "Strings not equal" fi ...
Check if Strings are Equal Use the=or==operators when checking if strings are equal. Follow the steps below tocreate a Bash scriptand compare two strings: Check Predefined Strings 1. Open the terminal (Ctrl+Alt+T) and create a new Bash script. We will use the vi/vim text editor: ...
./get_latest_release.sh checkForUpdate的输出: Strings are not equal current version is: v4.2.1 latest version is: v4.2.1 您可以看到,版本相同,但是if then检查返回的是它们的不同之处,而不是Strings are equal 感谢您的任何帮助。bash shell scripting ...
is readable-s FILE_NAM # TrueifFILE_NAM existsandisnotempty-w FILE_NAM # TrueifFILE_NAM has write permission-x FILE_NAM # TrueifFILE_NAM is executable#字符串测试操作-z STRING # TrueifSTRING is empty-n STRING # TrueifSTRING isnotemptySTRING1...
To check if two strings are equal, use == operator ? Open Compiler string1="Hello, world!"string2="Hello, world!"if["$string1"=="$string2"];then echo"Strings are equal"elseecho"Strings are not equal"fi The output will be ?
if [ $S1 = $S2 ]; then echo "Both Strings are equal" else echo "Strings are NOT equal" fi 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. #!/bin/bash #Declare string S1 S1="Bash" #Declare string S2 S2="Bash" if [ $S1 = $S2 ]; then ...
To check if two strings are equal, use==operator. Strings are case sensitive, so you have to run the comparison keeping this point in mind. $ X="Linux" $ Y="Linux" $ [[ $X == $Y ]] && echo "Equal" || echo "Not equal" ...