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, ...
else echo "Strings are not equal." fi 2. 使用 tr 命令去除所有空白字符 代码语言:txt 复制 string1=$(echo "your_string" | tr -d '[:space:]') string2=$(echo "your_string" | tr -d '[:space:]') if [ "$string1" == "$string2" ]; then echo "Strings are equal." else echo...
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 $?
./get_latest_release.sh checkForUpdate的输出: Strings are not equal current version is: v4.2.1 latest version is: v4.2.1 您可以看到,版本相同,但是if then检查返回的是它们的不同之处,而不是Strings are equal 感谢您的任何帮助。bash shell scripting ...
To check if two strings are equal, use == operator ? Open Compiler string1="Hello, world!"string2="Hello, world!"if["$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 ...
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...
-R varname True if the shell variable varname is set and is a name reference. -z string True if the length of string is zero. -n string True if the length of string is non-zero. string1 == string2string1 = string2 True if the strings are equal. It will perform pattern matching...
$ [ “$A” == “$B” ] && echo “Strings are equal” $ [ “$A” -eq “$B” ] && echo “Integers are equal” 22、bash的测试类型 -gt:是否大于 -ge:是否大于等于 -eq:是否等于 -ne:是否不等于 -lt:是否小于 -le:是否小于等于 ...