read命令:read命令用于从标准输入读取用户的输入,并将其存储到一个变量中。例如,以下脚本将提示用户输入姓名,并将其存储到变量name中: 代码语言:txt 复制 #!/bin/bash echo "请输入您的姓名:" read name echo "您好,$name!" 提示用户输入:可以使用echo命令在命令行界面上显示提示信息,引导用户输入。例如,上面...
for element in "${arr[@]}"; do if [[ $element =~ ^[0-9]+$ ]]; then # 如果是数字,则将其用于用户输入 read -p "请输入一个值:" userInput echo "用户输入的值为:$userInput" fi done 在上述代码中,使用正则表达式判断元素是否为数字,[[ $element =~ ^[0-9]+$ ]]表示元素必须...
This will run our script and give us the output of the commands used in the script. Input From stdin in Bash Script We can also take user input from the terminal or stdin in our Bash script. We can use the built-in Bash command read to read the Bash user input. It accepts the use...
1.你用了两个不同的括号。1.您未在[后添加空格 1.用双引号将变量括起来是一种很好的做法 所以你...
# Program - readinput.sh # reads input from the user and prints it back to the terminal That first line just tells the computer to run this script as a bash script, regardless of the shell environment that starts it. The other lines are comments. You can type anything there. It's jus...
In Bash, we use the read command to read input from the user. Example: echo"Tell me your name: "readfullnameecho"Hello, "$fullname Output: Tell me your name:JOHNHello, JOHN Above, we echo the user to say their name. Then, read the input from the user and store it in thefullname...
The read command is used to take an input from the user in the Bash script. If no variable is used after this command, the $REPLY variable is used to read the input value. The “read” command has many options to take an input which are explained in another tutorial. The use of ...
echo“What is the capital of Japan? Answerin5seconds” read–t5answer if[“$answer” = “tokyo”]||[“$answer” = “Tokyo”]; then echo“Your answer is Correct!” else echo“Your answer is Wrong!” fi Conclusion Getting input from a user input is one of the most important parts of...
The user's input is invisible. However, echoing the message displays the password: echo $password Be wary of this behavior when usingreadinscriptsthat prompt for passwords. Note:Useunset <variable name>to remove the user input. Set Character Limit ...
README.md bash-handbookThis document is written for those who want to learn Bash without diving in too deeply.Tip: Try learnyoubash— an interactive workshopper based on this handbook!Node Packaged ManuscriptYou can install this handbook using npm. Just run:...