How to run multiple lines in a batch file

So i create a batch called Idle.bat and i save all that 3 lines and run them as administrator,my question is can i add 50-60 lines?will have affect all 60 ?with no pause etc etc??
thank you

REG ADD "HKCU\Control Panel\Desktop" /v "ScreenSaverIsSecure" /t REG_SZ /d 0 /f
REG ADD "HKCU\Control Panel\Desktop" /v "ScreenSaveActive" /t REG_SZ /d 0 /f
REG ADD "HKCU\Control Panel\Desktop" /v "ScreenSavetimeOut" /t REG_SZ /d 0 /f

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or can i run this script adding all lines,this script have UAC run as administrator automatic:

@echo off

:: BatchGotAdmin
:-------------------------------------
REM  --> Check for permissions
>nul 2>&1 "%SYSTEMROOT%\system32\cacls.exe" "%SYSTEMROOT%\system32\config\system"

REM --> If error flag set, we do not have admin.
if '%errorlevel%' NEQ '0' (
    echo Requesting administrative privileges...
    goto UACPrompt
) else ( goto gotAdmin )

:UACPrompt
    echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\getadmin.vbs"
    set params = %*:"=""
    echo UAC.ShellExecute "cmd.exe", "/c %~s0 %params%", "", "runas", 1 >> "%temp%\getadmin.vbs"

    "%temp%\getadmin.vbs"
    del "%temp%\getadmin.vbs"
    exit /B

:gotAdmin
    pushd "%CD%"
    CD /D "%~dp0"
:--------------------------------------
REG ADD "HKCU\Control Panel\Desktop" /v "ScreenSaverIsSecure" /t REG_SZ /d 0 /f
REG ADD "HKCU\Control Panel\Desktop" /v "ScreenSaveActive" /t REG_SZ /d 0 /f
REG ADD "HKCU\Control Panel\Desktop" /v "ScreenSavetimeOut" /t REG_SZ /d 0 /f

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john lambertAsked:
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Raheman M. AbdulConnect With a Mentor Senior Infrastructure Support Analyst & Systems DeveloperCommented:
The code lines one by one until there are errors in that line and then it keeps executing the lines until end of batch file.

it means it gives error for the invalid command but keeps running the next lines (ie commands)
so does not effect your script.You just add like you did in your script posted (which have UAC run as administrator automatic:)
1
 
Bill PrewCommented:
You can do as you indicated adding the commands you want to execute in administrative mode at the end of that BAT file, and you can include as many as you need.

~bp
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Paul MacDonaldDirector, Information SystemsCommented:
"my question is can i add 50-60 lines?"
Yes, you can.

"will have affect all 60 ?"
No, the script will run fine with however many lines you put in it.  Each line executes once the one before it is done, so there may be a pause, but not because of the number of lines.
1
 
john lambertAuthor Commented:
thanks to all......
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