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...
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 = $S2 ]; then echo "Both Strings are equal" else echo "Strings are NOT equal" fi 1. 2. 3. 4. 5. 6. 7. 8. 9...
Write another Bash program where you assign two strings to different variables, and then the program prints both of those strings. Write a version where the strings are printed on the same line, and a version where the strings are printed on different lines. Write a Bash program that prints ...
File Test Operators Here, we will list some helping testing operators for permissions, size, date, file type, or existence in the bash script. Comparison Operators Comparison operators are used in bash to compare two strings to check if they are equal or not. Here, we will list some compari...
Comparison operators are used in bash to compare two strings to check if they are equal or not. Here, we will list some comparison operators including, string, and integer operators. Integer Operators Operators Explanation -eq is equal to -ne is not equal to -gt is greater than -ge is gr...
bash$ readlink /usr/bin/awk ../../bin/gawk strings 使用strings命令在二进制或数据文件中找出可打印字符. 它将在目标文件中列出所有找到的可打印字 符的序列. 这个命令对于想进行快速查找n个字符的打印检查来说是很方便的, 也可以用来检查一个未 知格式的图片文件(strings image-file | more可能会搜索出...
output. These are the strings that are subject to language translation when the current locale is not C or POSIX. This implies the -n option; no commands will be executed. [-+]O [shopt_option] shopt_option is one of the shell options accepted by the shopt builtin (see ...
Check file types and compare values. Returns 0ifthe condition evaluates totrue, 1ifit evaluates tofalse. More information: https://www.gnu.org/software/bash/manual/bash.html#index-_005b_005b. - Testifa given variable is equal/not equal to the specified string: ...
To compare strings in the shell scripting the string comparison operators=,==,!=are used. Let’s create a Bash script to take the username as input from the user and compare the name string with the hardcoded name. #!/bin/bash