dos taskkill 命令

C:\Users\asn\Desktop>taskkill /?

TASKKILL [/S system [/U username [/P [password]]]]
         { [/FI filter] [/PID processid | /IM imagename] } [/T] [/F]

Description:
    This tool is used to terminate tasks by process id (PID) or image name.

Parameter List:
    /S    system           Specifies the remote system to connect to.

    /U    [domain\]user    Specifies the user context under which the command should execute. 指定命令执行的用户上下文

    /P    [password]       Specifies the password for the given user context. Prompts for input if omitted. 为指定的用户上下午指定密码

    /FI   filter           Applies a filter to select a set of tasks.
                           Allows "*" to be used. ex. imagename eq acme*

    /PID  processid        Specifies the PID of the process to be terminated. 指定将被终止进程的PID, 使用tasklist获取PID
                           Use TaskList to get the PID.

    /IM   imagename        Specifies the image name of the process to be terminated. 指定将被终止的进程映像名
                           Wildcard '*' can be used to specify all tasks or image names.

    /T                     Terminates the specified process and any child processes which were started by it.
                           终止指定的进程和其所有子进程

    /F                     Specifies to forcefully terminate the process(es). 强制终止进程

    /?                     Displays this help message.

Filters:
    Filter Name   Valid Operators           Valid Value(s)
    -----------   ---------------           -------------------------
    STATUS        eq, ne                    RUNNING | NOT RESPONDING | UNKNOWN
    IMAGENAME     eq, ne                    Image name
    PID           eq, ne, gt, lt, ge, le    PID value
    SESSION       eq, ne, gt, lt, ge, le    Session number.
    CPUTIME       eq, ne, gt, lt, ge, le    CPU time in the format of hh:mm:ss.
                                            hh - hours, mm - minutes, ss - seconds
    MEMUSAGE      eq, ne, gt, lt, ge, le    Memory usage in KB
    USERNAME      eq, ne                    User name in [domain\]user
                                            format
    MODULES       eq, ne                    DLL name
    SERVICES      eq, ne                    Service name
    WINDOWTITLE   eq, ne                    Window title

    NOTE
    ----
    1) Wildcard '*' for /IM switch is accepted only when a filter is applied.
    2) Termination of remote processes will always be done forcefully (/F).
    3) "WINDOWTITLE" and "STATUS" filters are not considered when a remote
       machine is specified.

Examples:
    TASKKILL /IM notepad.exe  ## 终止进程映像名为 notepad.exe 的进程
    TASKKILL /PID 1230 /PID 1241 /PID 1253 /T
    
　　TASKKILL /F /IM cmd.exe /T  ## 强制终止进程映像名为cmd.exe进程，并终止从其启动的所有子进程
例如，终止所有的java.exe进程： taskkill /f /im java.exe /t

    TASKKILL /F /FI "PID ge 1000" /FI "WINDOWTITLE ne untitle*"  ## 终止进程PID > 1000 且 window title 不等于 untitle* 的所有进程

    TASKKILL /F /FI "USERNAME eq NT AUTHORITY\SYSTEM" /IM notepad.exe

    TASKKILL /S system /U domain\username /FI "USERNAME ne NT*" /IM *
    TASKKILL /S system /U username /P password /FI "IMAGENAME eq note*"

findstr命令

C:\Users\asn\Desktop>findstr /?
Searches for strings in files.

FINDSTR [/B] [/E] [/L] [/R] [/S] [/I] [/X] [/V] [/N] [/M] [/O] [/P]
        [/F:file] [/C:string] [/G:file] [/D:dir list] [/A:color attributes] [/OFF[LINE]]
        strings [[drive:][path]filename[ ...]]

  /B         Matches pattern if at the beginning of a line.
  /E         Matches pattern if at the end of a line. 

  /L         Uses search strings literally.

  /R         Uses search strings as regular expressions.

  /S         Searches for matching files in the current directory and all subdirectories.
             在当前目录和其子目录搜素匹配的文件

  /I         Specifies that the search is not to be case-sensitive. 默认搜素大小写敏感，指定大小写不敏感

  /X         Prints lines that match exactly. 打印出匹配的行
  /V         Prints only lines that do not contain a match.

  /N         Prints the line number before each line that matches. 在每个匹配行前，打印行号

  /M         Prints only the filename if a file contains a match. 如果文件包含匹配，仅打印文件名

  /O         Prints character offset before each matching line.  在每个匹配行前，打印字符偏移

  /P         Skip files with non-printable characters. 忽略带有不可打印字符的文件

  /OFF[LINE] Do not skip files with offline attribute set. 不要忽略设置了offline属性的文件

  /A:attr    Specifies color attribute with two hex digits. See "color /?"  使用2个十六进制数指定color属性

  /F:file    Reads file list from the specified file(/ stands for console). 从指定的文件中读取文件列表

  /C:string  Uses specified string as a literal search string.  使用指定的字符串作为一个字面搜索串

  /G:file    Gets search strings from the specified file(/ stands for console). 从指定的文件中获取搜索字符串

  /D:dir     Search a semicolon delimited list of directories 搜索一个逗号分隔的目录

  strings    Text to be searched for. 待搜索的文本

  [drive:][path]filename
             Specifies a file or files to search. 指定一个文件、一些文件用于搜索

Use spaces to separate multiple search strings unless the argument is prefixed with /C.
For example,
'FINDSTR "hello there" x.y' searches for "hello" or "there" in file x.y.   ## FINDSTR "hello there" x.y      搜索hello或there
'FINDSTR /C:"hello there" x.y' searches for "hello there" in file x.y.     ## FINDSTR /C:"hello there" x.y   把"hello there"当做一个整体在x.y文件中搜索

Regular expression quick reference:
  .        Wildcard: any character
  *        Repeat: zero or more occurrences of previous character or class
  ^        Line position: beginning of line
  $        Line position: end of line
  [class]  Character class: any one character in set
  [^class] Inverse class: any one character not in set
  [x-y]    Range: any characters within the specified range
  \x       Escape: literal use of metacharacter x
  \<xyz    Word position: beginning of word
  xyz\>    Word position: end of word

For full information on FINDSTR regular expressions refer to the online Command Reference.