prompt option is one of them. This option is used to take an input from the user using a prompt message that helps the user to understand what type of data needs to be provided. The methods of using the prompt option to take an input from the user in Bash are explained in this ...
How to Prompt Bash for User Input Prompting Bash for user input is easy. You can do it through the “read” command. Let’s divide this section further to discuss some examples: 1. The Basic Approach First, you must create a Bash script and give it the executable permissions. Here, we...
a script can be used with 'sudo' to run the program as that user, only allowing those with a password to access it. This method ensures a secure prompt for the user's password.
下面的脚本中就使用了 read 命令,字面上就像“读取标准输入”。 #!/bin/bash #Here we are asking a question to prompt the user for standard input. i.e.keyboard echo 'Please enter your name.' #Here we are reading the standard input and assigning it to the variable name with the read comman...
{2:-"$prompt"}" -i "$3" "$1" } elif [ ${BASHVERSION:-0} -ge 2 ] then readline() { history -s "$3" printf "Press up arrow to edit default value: '%s'\n" "${3:-none}" read -ep "${2:-"$prompt"}" "$1" } else readline() { printf "Press enter for default of...
/* Read a line of input. Prompt with PROMPT. An empty PROMPT means none. A return value of NULL means that EOF was encountered. */char*readline(prompt)constchar*prompt; {///...if(rl_prep_term_function) (*rl_prep_term_function) (_rl_meta_flag);#ifdefined (HANDLE_SIGNALS)rl_set...
#Here we are asking a question to prompt the user for standard input. i.e.keyboard echo 'Please enter your name.' #Here we are reading the standard input and assigning it to the variable name with the read command. read name #We are now going back to standard output, by using echo ...
我正在尝试将 find 的结果保存为数组。这是我的代码: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 #!/bin/bashecho"input : "read input echo"searching file with this pattern '${input}' under present directory"array=`find . -name${input}`len=${#array[*]}echo"found : ${len}"i=0...
echo "password for sudo" | sudo -S xxxx.sh or echo "password for sudo" | sudo -S yourCommand 1 2 3 对于参数 -S 对于的解释,在linux online manual上可以查到。 -S, --stdin Write the prompt to the standard error and read the password from the standard input instead of using the te...
在Bash中检测Enter键或没有输入可以通过读取标准输入并使用条件判断来实现。下面是一个示例脚本: ```bash #!/bin/bash echo "请输入内容:" read input i...