RonJohn's questions

有很多 SE 帖子涉及用一个空格替换多个空格，但似乎没有关于用多个空格替换一个空格的帖子。

输入数据：

$ head -n20 $X | paste -sd' \n'
        full backup: 20250320-203112F             repo1: backup set size: 4.4MB, backup size: 4.4MB
        full backup: 20250320-210501F             repo1: backup set size: 4.4MB, backup size: 4.4MB
        full backup: 20250321-070502F             repo1: backup set size: 7.7MB, backup size: 7.7MB
        incr backup: 20250321-070502F_20250321-100001I             repo1: backup set size: 8.5MB, backup size: 2.8MB
        incr backup: 20250321-070502F_20250321-104502I             repo1: backup set size: 43.5MB, backup size: 38MB
        incr backup: 20250321-070502F_20250321-104801I             repo1: backup set size: 43.5MB, backup size: 465B
        incr backup: 20250321-070502F_20250322-070502I             repo1: backup set size: 155.8MB, backup size: 150MB
        full backup: 20250323-070501F             repo1: backup set size: 283.8MB, backup size: 283.8MB
        incr backup: 20250323-070501F_20250324-070501I             repo1: backup set size: 411.9MB, backup size: 406.1MB
        incr backup: 20250323-070501F_20250325-070502I             repo1: backup set size: 541.5MB, backup size: 535.8MB

将八个空格硬编码到sed工作中，但很难一眼看出添加了多少个空格：

$ head -n20 $X | paste -sd' \n' | sed -e 's/F /F         /'
        full backup: 20250320-203112F                     repo1: backup set size: 4.4MB, backup size: 4.4MB
        full backup: 20250320-210501F                     repo1: backup set size: 4.4MB, backup size: 4.4MB
        full backup: 20250321-070502F                     repo1: backup set size: 7.7MB, backup size: 7.7MB
        incr backup: 20250321-070502F_20250321-100001I             repo1: backup set size: 8.5MB, backup size: 2.8MB
        incr backup: 20250321-070502F_20250321-104502I             repo1: backup set size: 43.5MB, backup size: 38MB
        incr backup: 20250321-070502F_20250321-104801I             repo1: backup set size: 43.5MB, backup size: 465B
        incr backup: 20250321-070502F_20250322-070502I             repo1: backup set size: 155.8MB, backup size: 150MB
        full backup: 20250323-070501F                     repo1: backup set size: 283.8MB, backup size: 283.8MB
        incr backup: 20250323-070501F_20250324-070501I             repo1: backup set size: 411.9MB, backup size: 406.1MB
        incr backup: 20250323-070501F_20250325-070502I             repo1: backup set size: 541.5MB, backup size: 535.8MB

类似的东西sed -e 's/F /F \{8,\}/'就是我所寻找的。

等一切搞定之后，我再处理incr backup线路。欢迎提供XY问题解决方案。

有时（但只是有时）我需要加载与配置的窗口大小不同的 PuTTY 会话。

类似于：

putty -load SomeServer -winrows 28 -wincols 142

我查看了在线文档，但什么也没看到。（PuTTY“管理器”允许您将相同的设置级联到多个会话；它们是否会在后台更新许多（也许几十个）注册表项？）

是的，我可以用鼠标调整窗口大小，但我会尽量将手指放在键盘上，因为这是重复性的工作（我已经尽我所能将其编写成脚本）。

腻子 0.83

PS 5.1.22621.4391（我被它困住了）

有时我需要运行这个：

plink -t -load "$Session" -batch -m $ShellFile

但有时我需要添加另一个选项：

plink -t -load "$Session" -batch -m $ShellFile -pw $SshPw

这看起来太黑客了，但效果不好：

if ($SshPw)
    { plink -t -load "$Session" -batch -m $ShellFile -pw $SshPw } 
else
    { plink -t -load "$Session" -batch -m $ShellFile }

我尝试将命令构建为字符串，然后通过执行&，但失败了，因为显然&处理的只是程序名称。

PS C:\Users> $X="plink -t -load `"$Session`" -batch -m $ShellFile"

PS C:\Users> $X
plink -t -load "FIS-Q-LBX-PGS-101-a" -batch -m C:\<somedir>\daily.txt

PS C:\Users> &$X
& : The term 'plink -t -load "FIS-Q-LBX-PGS-101-a" -batch -m C:\<somedir>\daily.txt' is not recognized as the name of a cmdlet, 
function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:2
+ &$X
+  ~~
    + CategoryInfo          : ObjectNotFound: (plink -t -load ...\Temp\daily.txt:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

有解决方法吗？我的 Google 能力不够强。

PS版本 5.1.22621.4391

plink：版本 0.82

我仔细研究了通过plink 从 powershell 中正确地转义 awk 命令，但其中一个程序一直在吃单引号。

有没有办法通过 plink 运行这个命令？

echo "select setting from pg_settings where name = 'server_version';"

我的失败例子：

PS C:\Users> plink -load "FIS-S-LBX-PGS-202-a" -batch echo "select setting from pg_settings where name = 'server_version';"
select setting from pg_settings where name = server_version

PS C:\Users> plink -load "FIS-S-LBX-PGS-202-a" -batch echo --% "select setting from pg_settings where name = 'server_version';"
select setting from pg_settings where name = server_version

PS C:\Users> plink -load "FIS-S-LBX-PGS-202-a" psql -c --% 'select setting from pg_settings where name = ''server_version'';'
Access granted. Press Return to begin session.
ERROR:  column "server_version" does not exist
LINE 1: select setting from pg_settings where name = server_version;

PS C:\Users> plink -load "FIS-S-LBX-PGS-202-a" -batch psql -c "select setting from pg_settings where name = 'server_version';"
psql: warning: extra command-line argument "pg_settings" ignored

[剪辑]

PS C:\Users> plink -load "FIS-S-LBX-PGS-202-a" -batch psql -c --% "select setting from pg_settings where name = 'server_version';"
psql: warning: extra command-line argument "pg_settings" ignored

是否有仅获取最深目录的通用解决方案？计算斜杠字符不起作用，因为如果我更改为--max-depth=4，最深的目录将不会都有相同数量的斜杠。

指示的两个目录<<<<是我想要的。

-bash-4.1$ du --max-depth=3 -h /Database/9.6/backups > x.x
du: cannot read directory `/Database/9.6/backups/lost+found': Permission denied
-bash-4.1$ cat x.x
16K     /Database/9.6/backups/lost+found
142G    /Database/9.6/backups/pgbackrest/archive/localhost  <<<<
142G    /Database/9.6/backups/pgbackrest/archive
4.9T    /Database/9.6/backups/pgbackrest/backup/localhost   <<<<
4.9T    /Database/9.6/backups/pgbackrest/backup
5.0T    /Database/9.6/backups/pgbackrest
5.0T    /Database/9.6/backups

我的家用路由器（Mikrotik RB750Gr2）有一个内部 IP 地址192.168.1.1和一个如下所示的路由表：

#      DST-ADDRESS        PREF-SRC        GATEWAY            DISTANCE
0 ADS  0.0.0.0/0                          174.67.140.1              1
1 ADC  174.67.140.0/23    174.67.141.204  ether1                    0
2 ADC  192.168.0.0/16     192.168.1.1     bridge1                   0

从我的台式电脑（192.168.1.10如果重要的话）我运行 nmap 来扫描我的整个/16网络，但它似乎试图扫描 192/8。

我做错了什么？

ron@haggis:~$ sudo nmap -A -T4 192.168/16
[sudo] password for ron: 

Starting Nmap 7.60 ( https://nmap.org ) at 2021-01-16 23:01 CST
Warning: 192.0.7.15 giving up on port because retransmission cap hit (6).
Warning: 192.0.7.24 giving up on port because retransmission cap hit (6).
Warning: 192.0.8.33 giving up on port because retransmission cap hit (6).
[snip]
Warning: 192.0.5.61 giving up on port because retransmission cap hit (6).
Warning: 192.0.5.154 giving up on port because retransmission cap hit (6).
^C

我获得了一个具有 8 个逻辑处理器的 VMware ESXi VM（运行 Windows Server 2016 SE），但我无法判断该 VM 是否是超线程的。（这对 SQL Server 很重要。）

C:\Users\XXXXXXX>wmic CPU Get DeviceID,NumberOfCores,NumberOfLogicalProcessors
DeviceID  NumberOfCores  NumberOfLogicalProcessors
CPU0      2              2
CPU1      2              2
CPU2      2              2
CPU3      2              2

wmic说有四个 CPU，每个 CPU 有两个内核。每个核心上有两个逻辑处理器是否意味着 HT 被禁用？