将上述脚本保存到一个文件中(例如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。
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. This tutorial describes how to compare strings in Bash....
Here is how you compare strings in Bash. if [ "$string1" == "$string2" ] You can also use a string directly instead of using a variable. if [ "$string1" == "This is my string" ] Let me show it to you with proper examples. ...
/bin/bashread-p"Enter first string: "VAR1read-p"Enter second string: "VAR2if[["$VAR1"=="$VAR2"]];thenecho"Strings are equal."elseecho"Strings are not equal."fi 您还可以使用逻辑和&&和或||比较字符串: [["string1"=="string2"]]&&echo"Equal"||echo"Not equal" 如果你需要检查字符...
String='My name is Delft.'if[[$String=~ .*Delft.*]];thenecho"The given string has Delft on it."fi 输出: The given string has Delft on it. 这里,.*Delft.*是要匹配的regex表达式,它表示匹配Delft.之前和之后的任何字符串,0 个或更多字符。它检查字符串中是否有子字符串Delft。
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...
if [[ $string1 == "Hello World!" ]] then printf "Same! \n" else print "Different! \n" fi if [[ $string2 = *"Bash"* ]] then printf "Contains word 'Bash'. \n" else printf "Does not contain the word. \n" fi 如何把for语句放在一行里执行?
/bin/BashS1="Hello World"S2="Hello World"if["$S1"="$S2"]thenecho"Equal"elseecho"Not Equal"fi The following script contains two strings, S1 and S2, that have the same value. The if condition uses the = operator to compare the strings; however, we can also useif [ "$S1" == "...
# 经过前两次排序比较之后,结果最后一个字符串最大,只需要比较前面两个,类似于冒泡if[ $str1 -gt $str2 ] then echo str1 gt str2 tmp=$str2 str2=$str1 str1=$tmp fi echo the strings after compare,the results are below echo $str1 $str2 $str3 ...
if test-commands; then command elif test-commands; then command else command fi # inline if [[ 100 -lt 200 ]]; then echo "100 < 200"; fi test commands test expr short hand: [ expr ] [[ expr ]]: bash condition rich set of operators ==, != , >, < compare on strings numeri...