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
## ## Set defaults ## prompt=" ==> " template='<!DOCTYPE html> <html lang="en"> <head> <meta charset=utf-8> <title>%s</title> <link href="%s" rel="stylesheet"> </head> <body> <h1>%s</h1> <div id=main> </div> </body> </html> ' ## ## Define shell functions ##...
#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 ...
script. Let’s take a look at how we could use bash to write scripts that require input from the user. In this example, we will create an activity generator, which will ask the user for their name and then choose a random activity to invite the user to participate in from an array ...
下列程式碼範例示範如何使用 AWS Command Line Interface 搭配 Bash 指令碼搭配 Amazon EC2 來執行動作和實作常見案例。 基本概念是程式碼範例,這些範例說明如何在服務內執行基本操作。 Actions 是大型程式的程式碼摘錄,必須在內容中執行。雖然動作會告訴您如何呼叫個別服務函數,但您可以在其相關情境中查看內容中的動作。
# make less more friendly for non-text input files, see lesspipe(1) #[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)" # set variable identifying the chroot you work in (used in the prompt below) if[ -z"${debian_chroot:-}"] && [ -r /etc/debian_chroot ];then ...
其实，EOF 不是一个字符，它被定义为是 int 类型的一个负数（比如 -1）。EOF 也不是文件中实际存在...
const name = prompt("What is your name?");Prompt for user input and return after <Enter> pressed; also aliased asread(). sleep(2000)Sleep for specified number of milliseconds (synchronous and will not block event loop) Command Execution(detailed docs below) ...
echo"System user." fi 3)bash交互式编程 read[option]“prompt”-p:直接指定一个变量接受参数 -t timaout:指定等待接受参数的时间 -n:表示不换行 例:输入用户名,可返回其shell #!/bin/bash read -p"Plz input a username: "userName ifid $userName &>/dev/null;then ...
5.3User Input If you’re making Bash programs for you or for others to use one way you can get user input is to specify arguments for users to provide to your program, as we discussed in the previous section. You could also ask users to type in a string on the command line by tempo...