我需要运行Postgres数据库并为此目的创建一个别名。具体工作思路如下:

$ nano ~/.bash_profile 

# in the bash_profile, insert the following texts:

alias pgst="pg_ctl -D /usr/local/var/postgres start"
alias pgsp="pg_ctl -D /usr/local/var/postgres stop"


$ source ~/.bash_profile 

### This will start the Postgres server 
$ pgst

### This will stop the Postgres server 
$ pgsp

macOS Catalina用户:

步骤1:创建或更新.zshrc文件

vi ~/.zshrc

步骤2:添加别名行

alias blah="/usr/bin/blah"

步骤3:源.zshrc

source ~/.zshrc 

步骤4:通过在命令提示符上输入alias来检查您的别名

alias

您可能希望在主目录中编辑.bashrc文件。

在OS X上，你需要使用~/.bash_profile。这是因为默认终端。应用程序为每个新窗口打开一个登录shell。

查看更多关于不同的配置文件以及何时使用它们的信息: .bashrc， .bash_profile和.environment之间有什么区别?

和在OSX这里:关于.bash_profile， .bashrc，别名应该写在哪里?

要创建永久别名快捷方式，请将其放在.bash_profile文件中，并将.bashrc文件指向.bash_profile文件。遵循以下步骤(我正在创建一个名为bnode的别名命令来在ES6代码上运行babel transpiler):

Go to terminal command prompt and type “cd” (this will take you to the home directory. Note: even though your programming files may be located on your “D: drive”, your “.bash” files may be located on your “C: drive” ) To see the location of the home directory, type “pwd” (this will show you the home directory path and where the .bash files are probably located) To see all dot "." files in the home directory, type “ls -la” (this will show ALL files including hidden dot "." files) You will see 2 files: “.bash_profile” and “.bashrc” Open .bashrc file in VS Code Editor or your IDE and enter “source ~/.bash_profile” in first line (to point .bashrc file to .bash_profile) Open .bash_profile file in VS Code Editor and enter “alias bnode='./node_modules/.bin/babel-node'” (to create permanent bnode shortcut to execute as bash command) Save and close both files Now open the file you want to execute (index.js) and open in terminal command prompt and run file by using command “bnode index.js” Now your index.js file will execute but before creating bnode alias in .bash_profile file you would get the error "bash: bnode command not found" and it would not recognize and give errors on some ES6 code. Helpful link to learn about dotfiles: https://dotfiles.github.io/

我希望这能有所帮助!好运！

在root - ex用户下创建bash_profile

/user/username/.bash_profile

打开的文件

vim ~ / . bash_profile

添加别名为ex.(保存并退出)

alias mydir="cd ~/Documents/dirname/anotherdir"

在新终端中输入mydir -它应该会打开

/user/username/Documents/dirname/anotherdir