Echo是所有Linux发行版附带的流行命令。 Echo由bash和C shell提供。 回声简单输出被赋予控制台或终端的值。 (Man Echo) To get more detailed help and echo official documentation use following command 要获得更详细的帮助并回显官方文档,请使用以下命令 $ man echo 1. Man Echo 男人回声 句法(Syntax) Echo c...
If we use -e parameter and \v option, it’ll create a vertical tab between words in the input string: [Admin@admin~]$ echo -e "Welcome \vto \vLinux" Welcome to Linux [Admin@admin ~]$ Copy The output of the command creates vertical tabs between the words of the input string. 3.7...
4.显示换行 echo-e"OK! \n"# -e 开启转义echo"It it a test" 输出结果: OK!It it a test 5.显示不换行 #!/bin/shecho-e"OK! \c"# -e 开启转义 \c 不换行echo"It is a test"输出结果:OK! It is a test 转义 \a 发出警告声; \b 删除前一个字符; \c 最后不加上换行符号; \f 换行...
(15) 使用 echo 命令从文本字符串中删除所有空格 Use ‘\b’ option along with -e option in echo command to remove all the spaces from the text string, example is shown below: 使用\b选项和-e选项来删除文本字符串中的所有空格,如下所示 $ echo -e "Welcome \bto \bLinux \bCommunity" Welcome...
abhishek@linuxhandbook:~$ echo -e “Hello\rWorld” World If you use the backspace character, it will remove one character before it: abhishek@linuxhandbook:~$ echo -e “Hello \bWorld” HelloWorld You can play with other escape characters in the similar way. ...
A system running Linux Access to the terminal window/command line Echo Command Syntax Theechocommand in Linux is used to display a string provided by the user. The syntax is: echo[option][string] For example, use the following command to printHello, World!as the output: ...
TL;DR: How Do I Install and Use the ‘echo’ Command in Linux? The'echo'command comes pre-installed in most Linux distributions. You can verify this with,which echo. If for some reason it isn’t installed, you can add it via the coreutils package,sudo [apt-get/yum] install coreutils...
linux 循环输出 echo linux for in循环 for循环 for 循环是固定循环,也就是在循环时已经知道需要进行几次循环。有时也把 for 循环称为计数循环。 语法: for 变量 in 值1 值2 值3… do 程序 done 1. 2. 3. 4. 在这种语法中,for 循环的次数取决于 in 后面值的个数(以空格分隔),有几个值就循环几...
We can use a command withechoand incorporate its output into the string that is written to the terminal window. We must use the dollar sign$as though the command was a variable, and wrap the whole command in parentheses. We're going to use thedate command. One tip is to use the comma...
Filesystem Size Used Avail Use% Mounted on /dev/sda5 7.8G 5.2G 2.2G 71% / /dev/sda11 137G 188M 129G 1% /data /dev/sda8 3.9G 74M 3.7G 2% /home /dev/sda7 4.9G 225M 4.4G 5% /var /dev/sda6 5.9G 141M 5.4G 3% /tmp ...