= STRIN2 # Trueifstrings arenotequal#算术测试操作var1 -eq var2 # Trueifvar1 is equal to var2var1 -ne var2 # Trueifvar1notequal to var2var1 -lt var2 # Trueifvar1 is less than var2var1 -le var2 # Trueifvar1 is less thanorequal ...
echo "Both Values are equal" else echo "Values are NOT equal" fi 1. 2. 3. 4. 5. 6. 7. 8. 9. #!/bin/bash # declare integers NUM1=2 NUM2=1 if [ $NUM1 -eq $NUM2 ]; then echo "Both Values are equal" else echo "Values are NOT equal" fi 1. 2. 3. 4. 5. 6. 7...
All values N are determined via HISTORY_BASE. */i = *caller_index;if(string[i] != history_expansion_char)return((char*)NULL);/* Move on to the specification. */i++; sign =1; substring_okay =0;#defineRETURN_ENTRY(e, w) \ return ((e = history_get (w)) ? e->line: (char ...
You are the owner of the file. f1 -nt f2 file f1 is newer than f2. f1 -ot f2 file f1 is older than f2 Comparison Operators Comparison operators are used in bash to compare two strings to check if they are equal or not. Here, we will list some comparison operators including, string...
在bash中，变量是一个用来存储数据的实体。每个变量都有一个名称和一个值，名称是变量的 ...
values, or they ask a question about one value. Conditional expressions are always between double brackets ([[ ]]), and they either uselogical flagsorlogical operators. For example, there are several logical flags you could use for comparing two integers. If we wanted to see if one integer...
‘test’: Check file types and compare values man test(获取帮助) test的判断表达式分为4类 string integer expression file testexits with the status determined by EXPRESSION. Placing the EXPRESSION between square brackets ([and]) is the same as testing the EXPRESSION withtest. ...
[abc@localhost ~]$ cat #!/bin/bash # 通过用户输入两个数值,分别赋值给num1、num2,然后来比较大小 read num1 num2 if [ $num1 -eq $num2 ]; then echo "Both values are equal!" elif [ $num1 -gt $num2 ]; then echo "num1 values is greater then num2" else echo "num1 values is...
-O You are the owner of the file. f1 -nt f2 file f1 is newer than f2. f1 -ot f2 file f1 is older than f2 Comparison Operators Comparison operators are used in bash to compare two strings to check if they are equal or not. Here, we will list some comparison operators including, ...
Comparison operators are operators that compare values and return true or false. When comparing strings in Bash you can use the following operators: string1 = string2 and string1 == string2 - The equality operator returns true if the operands are equal. Use the = operator with the test [ ...