今天豆子需要遠端登出一個終端伺服器的使用者，操作很簡單,首先quser獲取遠端使用者的sessionID，然後logoff命令登出即可

quser /server:XXXX
logoff sessionID /server:XXX

和早期的cmd和Linux的bash命令一樣，quser的結果都是字串。字串的處理對於指令碼來說比較麻煩，如果能夠轉換成標準的object物件就好了。

仔細觀察一下quser的結果，可以看見他的輸出結果很整齊，我如果能夠把他中間的空格用逗號替換掉，那就是標準的csv格式，那就很容易轉換為物件了。唯一的問題是有的列，比如sessionname為空，那我就需要數數到底多少個空格需要替換了

PS C:\users\yli\Documents> $a=quser /server:sydbcc02
PS C:\users\yli\Documents> $a
 USERNAME              SESSIONNAME        ID  STATE   IDLE TIME  LOGON TIME
 smiths                rdp-tcp#5          16  Active  24692+13:29  3/14/2017 9:06 AM
 llederbauer           rdp-tcp#4          22  Active       1:18  3/14/2017 9:18 AM
 

 jedwards                                 23  Disc         1:39  3/14/2017 7:54 AM
 tpicken               rdp-tcp#2          24  Active          .  3/14/2017 8:22 AM
 okaragiaouris         rdp-tcp#9          27  Active         18  3/14/2017 8:55 AM
 bhue                  rdp-tcp#7          28  Active         12  3/14/2017 9:20 AM
 

 mcherginets                              29  Disc         1:37  3/14/2017 8:58 AM
 abishop                                  30  Disc         2:48  3/14/2017 9:22 AM
 fburns                                   31  Disc         2:28  3/14/2017 9:37 AM
 ygordony                                 32  Disc         2:07  3/14/2017 10:04 AM
 tmoloney              rdp-tcp#0          33  Active       1:07  3/14/2017 9:30 AM
 smaroo                rdp-tcp#1          34  Active       1:45  3/14/2017 10:19 AM
 jwoodford                                35  Disc           22  3/14/2017 10:42 AM
 mozard                rdp-tcp#8          36  Active         56  3/14/2017 11:08 AM
 gmarsh                rdp-tcp#6          37  Active         41  3/14/2017 10:56 AM
 mking                                    38  Disc           20  3/14/2017 11:11 AM
 mcolgan               rdp-tcp#11         39  Active         59  3/14/2017 11:16 AM
 jbelgiovane           rdp-tcp#12         41  Active         39  3/14/2017 11:33 AM
 ndrabsch                                 42  Disc            3  3/14/2017 11:57 AM

直接看不太容易區分，轉換成ASCII看看，可以看見32（代表空格）一共有16個

$a=quser /server:sydbcc02
[int[]][char[]]$a[2]

32
108
108
101
100
101
114
98
97
117
101
114
32
32
32
32
32
32
32
32
32
32
32
114
100
112

okay，那我指定數量從2到17之間的空格都替換為逗號，從2開始是因為‘idle time’這些名字中間有空格就別替換了，最後程式碼如下

$quser = (quser /server:sydbcc02) -replace '\s{2,17}', ',' | ConvertFrom-Csv
$quser | ft

USERNAME      SESSIONNAME ID STATE  IDLE TIME LOGON TIME        
--------      ----------- -- -----  --------- ----------        
smiths                    16 Disc   3         3/14/2017 9:06 AM 
llederbauer   rdp-tcp#4   22 Active 1:26      3/14/2017 9:18 AM 
jedwards                  23 Disc   1:47      3/14/2017 7:54 AM 
tpicken       rdp-tcp#2   24 Active 7         3/14/2017 8:22 AM 
okaragiaouris rdp-tcp#9   27 Active .         3/14/2017 8:55 AM 
bhue          rdp-tcp#7   28 Active 20        3/14/2017 9:20 AM 
mcherginets               29 Disc   1:44      3/14/2017 8:58 AM 
abishop                   30 Disc   2:56      3/14/2017 9:22 AM 
fburns                    31 Disc   2:36      3/14/2017 9:37 AM 
ygordony                  32 Disc   2:15      3/14/2017 10:04 AM
tmoloney      rdp-tcp#0   33 Active 1:15      3/14/2017 9:30 AM 
smaroo        rdp-tcp#1   34 Active 1:52      3/14/2017 10:19 AM
jwoodford                 35 Disc   30        3/14/2017 10:42 AM
mozard        rdp-tcp#8   36 Active .         3/14/2017 11:08 AM
gmarsh        rdp-tcp#6   37 Active 48        3/14/2017 10:56 AM
mking                        38     Disc      27                
mcolgan                   39 Disc   .         3/14/2017 11:16 AM
jbelgiovane   rdp-tcp#12  41 Active 47        3/14/2017 11:33 AM
ndrabsch      rdp-tcp#3   42 Active .         3/14/2017 11:57 AM
alawton                   43 Disc   11        3/14/2017 12:02 PM

這樣子就可以很容易的進一步處理了，同樣的思路也可以用在其他的cmd命令上。