PostgreSQL：找不到命令
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PostgreSQL: command not found
提问by Tian
I installed PostgreSQL via MacPorts. However, going to /opt/local/lib/postgresql84/binI am unable to execute any of the pg commands. Does anyone know what I am doing wrong?
我通过 MacPorts 安装了 PostgreSQL。但是，转到/opt/local/lib/postgresql84/bin我无法执行任何 pg 命令。有谁知道我做错了什么？
回答by Greg Hewgill
When you say "going to", it sounds like you're using the cdcommand to change to that directory. Something like:
当您说“going to”时，听起来您正在使用该cd命令切换到该目录。就像是：
$ cd /opt/local/lib/postgresql84/bin
$ psql
psql: command not found
Normally on Unix systems, the current directory is notpart of your executable search path. So either explicitly execute psqlfrom the current directory using ./:
通常在 Unix 系统上，当前目录不是可执行文件搜索路径的一部分。因此，要么psql使用./以下命令从当前目录显式执行：
$ cd /opt/local/lib/postgresql84/bin
$ ./psql
or, add the directory to your PATH:
或者，将目录添加到您的PATH：
$ export PATH=/opt/local/lib/postgresql84/bin:$PATH
$ psql
回答by BarsMonster
Try this command:
试试这个命令：
find / -name psql
回答by ignacio chiazzo
I had installed postgres (Mac,The capitan SO) with the dmg and also I got the same issue. I had to install psql through brew. Try with this :
我已经用 dmg 安装了 postgres（Mac，The capan SO），我也遇到了同样的问题。我不得不通过 brew 安装 psql。试试这个：
brew install postgres
This worked for me.
这对我有用。
回答by Topera
Try
尝试
whereis psql
