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...
readline函数使用内置命令read的选项,这将在第九章中详细讨论。 ## ## 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...
如何在 Bash Shell 脚本中显示对话框 这个教程给出几个如何使用类似zenity和whiptail的工具在Bash Shell 脚本中提供消息/对话框的例子。使用这些工具,你的脚本能够告知用户当前程序运行的状态并能与用户进行交互。这两个工具的不同之处在于显示消息框或者对话框的方式。Zenity用GTK工具包创建图形用户界面,而whiptail则在...
一般指令模式:vim进去模式的模式 编辑模式:在一般模式下按 “i, I, o, O, a, A, r, R” 可以进入编辑模式 命令行命令模式:在一般模式下输入 “: / ?” 任意一个,可以将光标移动到最下面那一列 vim fileName可以新建一个文件,编辑完后按ESC输入:wq即可完成编辑且退出,若文件权限不对无法写入,可以加一...
# off by default to not distract the user: the focus in a terminal window # should be on the output of commands, not on the prompt # force_color_prompt=yes if[ -n"$force_color_prompt"];then if[ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null;then ...
#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 ...
经过更仔细的检查,我意识到我在 if 语句中使用了不正确的判断符号“ = ”,应该是“ == ”。这个小错误导致了不可以预见的结果,从那时起,我将 C 语言当做一个有精神病的室友,我们可以一起生活、一起工作,但是只要你一不注意它,他就会出来给你捣蛋。
#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 ...
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...
# do not delete / or prompt if deleting more than 3 files at a time # alias rm = 'rm -I --preserve-root' # confirmation # alias mv = 'mv -i' alias cp = 'cp -i' alias ln = 'ln -i' # Parenting changing perms on / # ...