alias:显示系统上定义的所有别名 alias CMDALIAS='COMMAND [options] [arguments]':CMDALIAS别名叫什么,等于某个实实在在的命令。 ualias CMDALIAS:撤销别名,CMDALIAS别名名字。 \CMD:当定义的命令别名加了选项跟命令本身相同,想使用命令本身加\反斜杠。 可以带选项和参数,如果命令中间有空格最好用引号''引起来,...
04-Bash语法,ls,history,alias,echo 一、Bash特性 1、基础语法 命令有三部分组成: 命令 [选项] [参数] command [option] [argument] 三部分中间至少用一个空格隔开,否则无法区分选项和参数, 其中,[ ]内为可有可无部分,故选项和参数部分可有可无,命令组成示例如下: oot@yyds ~]# ls -la /dfg/ 命令 选...
除了分号,Bash 还提供两个命令组合符&&和||,允许更好地控制多个命令之间的继发关系。 Command1 && Command2 上面命令的意思是,如果Command1命令运行成功,则继续运行Command2命令。 Command1 || Command2 上面命令的意思是,如果Command1命令运行失败,则继续运行Command2命令。 下面是一些例子。 $ cat filelist.txt ...
If you want to get rid of an alias, just use theunaliascommand: unalias ll The alias is now removed. You can list all of your configured aliases by passing thealiascommand without any arguments: alias To temporarily bypass an alias (say we aliasedlstols -a), we can type: \ls This wi...
alias Used to define an alias for a specific command. bg Run a job in background mode. bind Used to bind a keyboard sequence. break Used to exit from a running loop in script. cd Change the directory to another directory. command Run a specific command without the normal shell lookup. ...
While ShellCheck is mostly intended for interactive use, it can easily be added to builds or test suites. It makes canonical use of exit codes, so you can just add ashellcheckcommand as part of the process. For example, in a Makefile: ...
You can define functions in your .bashrc file with your other bash alias. In a shell script, the function can be defined anywhere before being called for execution and you can source your function definitions by using the source or dot command. A function is executed when it’s called by ...
Number of arguments: 1 用户输入 如果你正在为自己或其他人编写Bash程序,那么获取用户输入的一种方式就是指定用户提供给程序的参数,正如我们在前一节中讨论的那样。你还可以通过使用read命令暂时停止程序的执行,要求用户在命令行上输入一个字符串。让我们写一个小脚本,你可以看到read命令是如何工作的: 代码语言:ja...
Positional arguments Example: vim-replace:command:ag -l "$0" && vim -c "bufdo %s/$0/$1/gc" $(ag -l "$0")enable_positional_arguments:true The above alias allows you to do the following: vim-replace old_text new_text This replaces$0,$1etc with the arguments you send to your alias...
To set an alias:nvm alias my_alias v14.4.0Make sure that your alias does not contain any spaces or slashes.The first version installed becomes the default. New shells will start with the default version of node (e.g., nvm alias default)....