记录下最近windows cmd下学会的命令

最近在windows 上装了curl 和 freesshd 把windows 当Linux用，不亦乐乎，记录下这几天的心得。
下载windows curl 的地址： 看来就是URL里面传了几个参数而已。
https://curl.haxx.se/dlwiz/?type=bin&os=Win64&flav=-&ver=*&cpu=x86_64

1.   根据字符串查询进程

相当于linux 下的ps -ef |grep -i java
tasklist |findstr /I java
其实findstr 很复杂， 请看
C:\Users\Administrator>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.
  /I         Specifies that the search is not to be case-sensitive.
  /X         Prints lines that match exactly.
  /V         Prints only lines that do not contain a match.
  /N         Prints the line number before each line that matches.
  /M         Prints only the filename if a file contains a match.
  /O         Prints character offset before each matching line.
  /P         Skip files with non-printable characters.
  /OFF[LINE] Do not skip files with offline attribute set.
  /A:attr    Specifies color attribute with two hex digits. See "color /?"
  /F:file    Reads file list from the specified file(/ stands for console).
  /C:string  Uses specified string as a literal search string.
  /G:file    Gets search strings from the specified file(/ stands for console).
  /D:dir     Search a semicolon delimited list of directories
  strings    Text to be searched for.
  [drive:][path]filename
             Specifies a file or files to search.


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 /C:"hello there" x.y' searches for
"hello there" in file x.y.


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: end of word


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

看起来windows 下的find 和findstr 也不弱啊。

C:\Users\Administrator>help find
Searches for a text string in a file or files.

FIND [/V] [/C] [/N] [/I] [/OFF[LINE]] "string" [[drive:][path]filename[ ...]]

  /V         Displays all lines NOT containing the specified string.
  /C         Displays only the count of lines containing the string.
  /N         Displays line numbers with the displayed lines.
  /I         Ignores the case of characters when searching for the string.
  /OFF[LINE] Do not skip files with offline attribute set.
  "string" Specifies the text string to find.
  [drive:][path]filename
             Specifies a file or files to search.

If a path is not specified, FIND searches the text typed at the prompt
or piped from another command.

2.  重定向。

"c:\Program Files\IBM\Director\jre\bin\java.exe" -version
#相当于
"c:\Program Files\IBM\Director\jre\bin\java.exe" -version >con 2>con
#这个命令的输出吓了我一跳，原来java.exe -version 的输出居然是stderror.
"c:\Program Files\IBM\Director\jre\bin\java.exe" -version >NUL
#2>nul 就可以将stderr 重定向到nul, 就是Linux 上的2 >/dev/null.
"c:\Program Files\IBM\Director\jre\bin\java.exe" -version 2>NUL
#来个比较正常的重定向：
"c:\Program Files\IBM\Director\jre\bin\java.exe" -version >1.txt
#下面来重定向两个文件
"c:\Program Files\IBM\Director\jre\bin\java.exe" -version >3.txt 2>&1
"c:\Program Files\IBM\Director\jre\bin\java.exe" -version 2>4.txt
#打印下txt文本的内容
type 4.txt
#比较下两个文本的异同，有点像linux 下的diff
C:\Users\Administrator>fc 4.txt 3.txt
Comparing files 4.txt and 3.TXT
FC: no differences encountered
#最后查看上一条命令的返回值，就是linux下的echo $?
echo %ERRORLEVEL%
#但是在bat脚本里面就不能这么用，要参考这个https://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/setlocal.mspx?mfr=true

3. 在windows 上安装freesshd ，然后通过paramiko 在windows 上执行命令，碰到了很多次这个错误。

Output: Unable to execute command or shell on remote system: Failed to Execute process

经过搜索下得知：要在命令前加上"cmd /c"

例如我在windows 上通过curl 下载的命令是这样：
r"curl -o c:\{0} -s -k -u {1}:{2} {3}".format(filename, user,pass,url）
改成：
r"cmd /c curl -o c:\{0} -s -k -u {1}:{2} {3}".format(filename, user,pass,url）