postgresql Postgres createdb：找不到命令 Mac OS 终端
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Postgres createdb: command not found Mac OS Terminal
提问by user3315620
After su postgresand typing of my password in my macOS terminal, it shows bash-3.2$
之后su postgres我在我的MacOS密码的输入端，它显示bash-3.2$
What when I type command like createdb, it says:
当我输入类似的命令时createdb，它说：
bash: createdb: command not found
bash: createdb: 命令未找到
I googled and it says "either PostgreSQL was not installed at all or your shell's search path was not set to include it."
我用谷歌搜索，它说“要么根本没有安装 PostgreSQL，要么你的 shell 的搜索路径没有设置为包含它。”
How can I fix this?
我怎样才能解决这个问题？
回答by dr jimbob
Before typing in su postgrestype in which createdbwhich will tell you what the path is for createdb. For example if which returns /usr/local/bin/createdb, you would add that path to your environmental variable $PATHby typing export PATH=$PATH:/usr/local/binin the command line once you type su postgres. Then you can run createdb.
在输入su postgrestype in which createdbwhich之前，它将告诉您 createdb 的路径是什么。例如，如果 which 返回/usr/local/bin/createdb，您将在$PATH输入export PATH=$PATH:/usr/local/bin后通过在命令行中输入 来将该路径添加到您的环境变量中su postgres。然后你可以运行createdb。
Alternatively, you can just specify the full path in the command line /usr/local/bin/createdb. If you need to do this often, you can add the line to change the PATHvariable in ~/.bash_profile.
或者，您可以只在命令行中指定完整路径/usr/local/bin/createdb。如果您需要经常这样做，您可以PATH在~/.bash_profile.
