妙音

 

喜欢用linux的grep命令查找文件内容，用起来很方便，windos是否也有grep命令呢？

 

在powershell中，提供了Select-String命令搜索文件内容

select-string -Pattern "Keyword"  -Path *.log
select-string "Error" *.log

select-string "Error" *.log -casesensitive

select-string keyword1,keyword2 *.log

Get-ChildItem -include *.log -recurse |select-string keyword

 

想要通过wmi接口修改windows盘符，该如何实现呢？wmi提供了Win32_Volume类，通过该类可以修改盘符。

 

import wmi
_root_conn = wmi.WMI(privileges=["Shutdown"])
query_str = "select * from Win32_Volume where DeviceID like '%%%s%%'" % volume_id
volume = _root_conn.query(query_str)[0]
volume.DriveLetter = "M:"
volume.put()

 

$Drive = Get-WmiObject win32_volume -Filter "Label = 'xxxx'"
$Drive.DriveLetter = "m:"
$Drive.put()

PS C:\Users\Administrator> Get-Volume

DriveLetter FileSystemLabel FileSystem DriveType HealthStatus OperationalStatus SizeRemaining      Size
----------- --------------- ---------- --------- ------------ ----------------- -------------      ----
G                           NTFS       Fixed     Healthy      OK                    320.86 GB 372.61 GB
            系统保留        NTFS       Fixed     Healthy      OK                    301.87 MB    350 MB
C                           NTFS       Fixed     Healthy      OK                    881.36 GB 931.17 GB
                            NTFS       Fixed     Healthy      OK                    931.31 GB 931.51 GB