vencedor

with : with문이 종료되면 별도로 close해주지 않아도 열었던 파일을 닫아준다. 

with open(r'C:\test\test.bin', 'wb') as fout:
    fout.write('test')

.tell()     //함수는 파일의 시작으로부터의 현재 오프셋을 바이트 단위로 반환
.seek()   //함수는 다른 바이트 오프셋으로 위치를 이동

fin = open(r'C:\test\test.bin', 'rb')       //예) 256바이트 이진파일
fin.seek(-1, 2)         //255, 파일의 마지막에서 1바이트 전 위치로 이동
fin.tell()                 //결과 : 255

fin.seek(254, 0)       //254, 파일의 마지막에서 2바이트 전 위치로 이동
fin.tell()                 //결과 : 254

IE9 호환성보기 목록 URL

 - http://ie9cvlist.ie.microsoft.com/IE9CompatViewList.xml

Starting Avira System Scanner from the command line

Many download managers and backup programs allow you to scan files with a virus scanner, using the command line. In this way, you can use the graphical user interface of Avira software, configuring it with the following parameters (the syntax is not case-sensitive, but the paths have to be inserted in double-quotes):
 /CFG="<path to the scan profile file>"
 /PATH="<path to the folder or file to be scanned>"

Examples:
"%PROGRAMFILES%\Avira\AntiVir Desktop\avscan.exe"  /CFG="%PROGRAMFILES%\Avira\AntiVir Desktop\scan.avp"
 "%PROGRAMFILES%\Avira\AntiVir Desktop\avscan.exe"  /PATH="%WINDIR%"
 "%PROGRAMFILES%\Avira\AntiVir Desktop\avscan.exe"  /PATH="C:\Downloads\"
 "%PROGRAMFILES%\Avira\AntiVir Desktop\avscan.exe"  /PATH="C:\Downloads\%1"

Avira System Scanner uses the configuration set in Avira product, under Configuration → PC Protection → System Scanner. So, if you activated the option Scan master boot sectors, they will be scanned every time avscan.exe starts.

In case you do not want to use this option, because the scanning takes longer, there is a work-around, for scanning only the selected files.
1. Download this profile file (right-click the link and select Save link as): filescan.avp
2. Save the file on your hard disk, then right-click it and select Properties. Activate the option Read only and press OK.
3. Now you have to apply this profile to the /CFG parameter. For example, to use Avira products with WinRAR, you have to use the following parameters:
 System Scanner name: "%PROGRAMFILES%\Avira\AntiVir ...\avscan.exe"
 System Scanner parameter: /CFG="C:\filescan.avp" /PATH="%f"

You can also use Avira Command Line Scanner (AVCLS) which has detailed configuration possibilities. It can be downloaded from Avira website, under Downloads. Please read the installation guide and the description of the parameters in the downloaded text file.