# lastlog

显示系统中所有用户最近一次登录信息

## 补充说明

**lastlog命令** 用于显示系统中所有用户最近一次登录信息。

lastlog文件在每次有用户登录时被查询。可以使用lastlog命令检查某特定用户上次登录的时间，并格式化输出上次登录日志`/var/log/lastlog`的内容。它根据UID排序显示登录名、端口号（tty）和上次登录时间。如果一个用户从未登录过，lastlog显示`**Never logged**`。注意需要以root身份运行该命令。

### 语法

```
lastlog(选项)
```

### 选项

```
-b<天数>：显示指定天数前的登录信息；
-h：显示召集令的帮助信息；
-t<天数>：显示指定天数以来的登录信息；
-u<用户名>：显示指定用户的最近登录信息。
```

### 实例

```
lastlog
Username         Port     From             Latest
root             pts/0    221.6.45.34      Tue Dec 17 09:40:48 +0800 2013
bin                                         **Never logged in** 
daemon                                      **Never logged in** 
adm                                         **Never logged in** 
lp                                          **Never logged in** 
sync                                        **Never logged in** 
shutdown                                    **Never logged in** 
halt                                        **Never logged in** 
mail                                        **Never logged in** 
news                                        **Never logged in** 
uucp                                        **Never logged in** 
operator                                    **Never logged in** 
games                                       **Never logged in** 
gopher                                      **Never logged in** 
ftp                                         **Never logged in** 
nobody                                      **Never logged in** 
vcsa                                        **Never logged in** 
ntp                                         **Never logged in** 
sshd                                        **Never logged in** 
nscd                                        **Never logged in** 
ldap                                        **Never logged in** 
postfix                                     **Never logged in** 
www                                         **Never logged in** 
mysql                                       **Never logged in**
```


---

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