Daily Archives: July 15, 2017

Batch Script Basics

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System Path is one which comes when you type cmd in windows->run
Other simple commands are dir,ver,cls

Storing Variable Name

>>set strName=Mugil
>>echo  %strName%

Typing set and pressing enter will return system variable

>>set

To check for List of Users type

>>set USER

String Cancatenation

>>set strFirstName=Mugil
>>set strFirstName=%strFirstName% Vannan

Displays Volumne Info

>>vol D:
>>dir /B

Get option of Util
>>dir /?
>>cls /?

Lists folder in Dir with details

>>dir

Lists folder in Dir without details

>>dir /B

Turn off the command executed in Screen

>>echo off

Turn off the Display of Batch Statements when Echo off command activated(Works for Script)

>>@echo off

/A tag will allow us to work with mathematical operation

>>Set /A

/P tag will allow user inputs by prompting msg

>>Set /P

Getting Inputs from Console

@echo off

set /p name=Please Enter your name

echo.
echo Your name is - %name%

pause

Labels(Organize code pieces)

:label

Goto(Jumps to Label and starts execution)

goto :label

Comments

rem this is comment
:: this is again a comment

Functions

:getSum
   echo The Sum is Addition of Two Numbers
goto :eof

Calling Functions within function

:getMath
	echo Calling Sum Function
	call :getSum	
goto :eof

:getSum
   echo The Sum is Addition of Two Numbers
goto :eof

Functions that takes Argument

Reading Lines from Log Files – Batch Script

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The below batch script helps to read the selected trailing lines from Log File

@echo off
cls
setlocal EnableDelayedExpansion
set "cmd=findstr /R /N "^^" C:\Users\Mugil\Desktop\test.txt | find /C ":""

for /f %%a in ('!cmd!') do set totalLines=%%a
rem echo "totalLines-"%totalLines%


@set linesToConsider=4
set /a lineToStart="%totalLines%-%linesToConsider%" 

rem echo "lineToStart-"%lineToStart%

set content=
for /f "skip=%lineToStart% delims=" %%i in ('type C:\Users\Mugil\Desktop\test.txt') do set content=!content! %%i


@echo "content - "%content%


If NOT "%content%"=="%content:SUCCESS=%" (
    echo Build Successful
) else (
    echo Build Failed
)

pause