# PS Command

The `ps` (process status) command is used to **view running processes** on a Linux system. It’s useful for monitoring and troubleshooting tasks.

---

## Basic Usage

### Show tasks in the current shell

```bash
ps
```

### Show tasks in the current shell with **full info**

```bash
ps -f
```

---

## View System-Wide Processes

### Show **all** processes

```bash
ps -A
# or
ps -e
```

---

### Show tasks by **specific user**

```bash
ps -u <username>
```

Replace `<username>` with the actual user name.

---

### Show **detailed info for all** tasks

```bash
ps aux
```

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## Output Fields Explained

| Column    | Description                                        |
| --------- | -------------------------------------------------- |
| `USER`    | Owner of the process (often `root` or your user)   |
| `PID`     | Process ID                                         |
| `%CPU`    | CPU usage percentage                               |
| `%MEM`    | Memory usage percentage                            |
| `STAT`    | Process state: `R` (running), `S` (sleeping), `Z` (zombie), etc. |
| `START`   | Time when the process started                      |
| `TIME`    | Total CPU time used                                |
| `COMMAND` | Command that started the process                   |


### Show List Jobs

```bash
jobs
```

### Move Process From Background To Foreground

```bash
fg
```