str="Hello World" if [[ "$str" == *"Hello"* ]]; then echo "String contains 'Hello'" else echo "String does not contain 'Hello'" fi 这些方法可以帮助你在Bash中正确比较变量和字符串。请注意,变量在比较时需要使用双引号括起来,以避免由于特殊字符引起的错误。 相关
$ ./check_substr.sh "This is a test string" "test string" "This is a test string" contains "test string" $ ./check_substr.sh "This is a test string" "is a test" "This is a test string" contains "is a test" $ ./check_substr.sh "This is a test string" "isa test" "This...
2. 另请参见:Bash String Comparison: Find Out IF a Variable Contains a Substring
string='My long string'if[[$string==*"My long"*]];then echo"It's there!"fi 注意,是将子字符串外部使用双*号包裹。 其中== 是字符串相等的比较符。而 * 则是通配符,会适配任意长度的任意字符。 强大的正则 我们知道,Bash 中的数据类型是极为弱的,不像高级语言那样区分 integer, string, float, ...
An array element can contain a string or a number, and you can use it just like any other variable. The indices for arrays start at 0 and continue up to a very large number. 如何声明一个属组: declare -a AA(声明属组叫AA) 赋值方法1:表示AA中有7个元素,其中3、4、5为空; ...
var=$(az group list--query"[? contains(name, '$resourceGroup')].name"--outputtsv) case$resourceGroupin$var) echo The$resourceGroupresource group already exists.;; *)az group create--name$resourceGroup--location"$location";; esac
4.2 Searching with case-insensitive string 5. Using awk 6. Using sed with grep Command 7. Conclusion 1. Overview In this article, we will see how to check if output contains String in Bash using grep, Conditional Expressions, awk, sed commands with various options. 2. Introduction to Proble...
How does Bash string end in Linux? Find out it here. This article has the best methods of how to check with what bash string ends. Here you will also find out freeware software to transfer Linux files on Windows.
$ array=("something to search for" "a string" "test2000")$ containsElement "a string" "${...
One of the most common operations when working with strings in Bash is to determine whether or not a string contains another string. In this article, we will show you several ways to check if a string contains a substring.