Question

我刚刚按照说明here在Ubuntu 16.10上安装了Postgres 9.5。

我需要在独立模式下运行Postgres以获得数据库真空。我需要运行这个命令：

postgres --single -D /full/path/to/datadir postgres

但是postgres命令不可用：

$ postgres
No command 'postgres' found, did you mean:
 Command 'postgrey' from package 'postgrey' (universe)
postgres: command not found

它在postgres用户路径中不可用：

dbuser@pgserver:~$ sudo -i
root@pgserver:~# su postgres
postgres@pgserver:/root$ postgres
No command 'postgres' found, did you mean:
 Command 'postgrey' from package 'postgrey' (universe)
postgres: command not found

此实用程序在哪里，或者我需要安装什么才能访问它？

Answer 1

public interface WalkListener extends EventListener { public void walkPerformed(int x); } public interface JumpListener extends EventListener { public void jumpPerformed(int y); } public class Game { private Vector<WalkListener> walkListeners; private Vector<JumpListener> jumpListeners; public void addWalkListener(WalkListener listener) { ... } public void addJumpListener(JumpListener listener) { ... } public void performWalk(int x) { ... walkListeners.get(0).walkPerformed(x); ... } public void performJump(int y) { ... jumpListeners.get(0).jumpPerformed(y); ... } private class Walk implements WalkListener { ... } private class Jump implements JumpListener { ... } } public class GameTest { @Test public void finalTest() { Game game = new Game(); WalkListener walkListener = mock(WalkListener.class) JumpListener jumpListener = mock(JumpListener.class) game.addWalkListener(walkListener); game.addJumpListener(jumpListener); game.performWalk(5); game.performJump(2); InOrder order = inOrder(walkListener, jumpListener); order.verify(walkListener).walkPerformed(5); order.verify(jumpListener).jumpPerformed(2); } }命令（以及postgres和其他命令）位于pg_ctl。

值得注意的是，它们必须由像/usr/lib/postgresql/9.5/bin这样的非特权用户运行。以下是我为解决问题所做的工作：

为postgres用户创建主目录：
```
postgres
```

编辑路径：

$ sudo -i
$ mkdir /home/postgres
$ chown postgres:postgres /home/postgres
$ usermod -d /home/postgres/ postgres

附加：

$ su - postgres
$ vim ~/.bash_profile

运行PATH=$PATH:/usr/lib/postgresql/9.5/bin export PATH以访问命令：
```
su - postgres
```

Postgres可执行Ubuntu中的独立模式

1 个答案: