Bash has no built-in function to take the user’s input from the terminal. Thereadcommand of Bash is used to take the user’s input from the terminal. This command has different options to take an input from the user in different ways. Multiple inputs can be taken using the singleread...
Example 1: Using the “read” Command in a Bash Script To examine the “read” command more in-depth, we will create a simple script that will ask for the user’s name. First, open any text editor; for this tutorial, I am using the Vim text editor due to its many useful features....
The Bashreadcommand comes with many options to control the user input. Some options do not require additional parameters, while others have mandatory parameters. The table below shows all the possible command options and their description. Continue reading to seehow the read commandworks through vari...
[Bash] read command Thereadcommand is used to take input from the user. Reading a single input value: echo"Enter your name:"readNAMEecho"Hello,$NAME!" Output after entering "Alice": Enter your name: Alice Hello, Alice! Reading multiple input values:...
read 命令 read命令语法形式是read [options] [name...]。为了简单说明read命令的工作方式,请按快捷键CTRL+ALT+T打开终端,运行命令read var1 var2。 read命令将会等待用户输入。可以输入任意两个字符串并使用空格进行分隔,例如输入Hello World。输入完成后按Enter。
使用这个bash脚本,用户应该选择一个目录,并根据这个目录对子目录进行第二次选择。select project in "${options[@]}"; do breakdone 我的问题是,即使在第二个选择之后,提示Select application仍然保持 浏览4提问于2022-10-18得票数 1 回答已采纳 2回答 带有图形菜单的Bash脚本 、、 我写简单bash脚本已...
Open ifdongsopened this issueJun 10, 2021· 3 comments Open opened this issueJun 10, 2021· 3 comments ifdongscommentedJun 10, 2021 The root administrator sets the variables to read only. Is there any other way to use z.lua? Best Regards. ...
It redirects the output of the first command to the input of the second command. Let's say you use cat to display the contents of a large file, but the content scrolls by too quickly for you to read. You can make the output more manageable by piping the results to another command ...
CAT(1) User Commands CAT(1) NAME cat - concatenate files and print on the standard output SYNOPSIS cat [OPTION]... [FILE]... DESCRIPTION Concatenate FILE(s) to standard output. With no FILE, or when FILE is -, read standard input. -A, --show-all equivalent to -vET -b, --number...
但是每個關聯或者命令必須作為單獨的引數傳遞; 也就是這樣 '"\C-x\C-r": re-read-init-file'。 如果有引數,它們有如下的意義: -m keymap 使用keymap 作為隨後的關聯的keymap。可選的 keymap 名稱是 emacs, emacs-standard, emacs-meta, emacs-ctlx, vi, vi-move, vi-command,還有 vi-insert。 vi ...