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Password Generator in batch



Unicorn Meta Zoo #1: Why another podcast?
Announcing the arrival of Valued Associate #679: Cesar Manarahow do you make a letter password generator in batch?Run this bat file with admin rightsRun windows batch file from ssh login - env vars missingWinPE, Startnet.CMD and passing variables to second batch file not workingCould I centralize batch files more efficiently?Fast NT batch script for determining path lengths in a folderHow to have a batch call another batch based on its location?Can't concatenate a string inside a batch loopOpen batch file and execute commands from thereLimit length of user input batchHow to query current Directory name into a variable for batch files



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1















I found this batch file password generator:



rem 16 stings pwd

setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789

set pwd=
FOR /L %%b IN (0, 1, 16) DO (
SET /A rnd_num=!RANDOM! * 62 / 32768 + 1
for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set pwd=!pwd!%%c
)

echo pwd=%pwd%


which I put into a batch file: rand.bat
However when I call rand.bat from another batch file, the environment variable pwd is no longer available. How do I get it to persist into the calling batch file?










share|improve this question






























    1















    I found this batch file password generator:



    rem 16 stings pwd

    setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
    set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789

    set pwd=
    FOR /L %%b IN (0, 1, 16) DO (
    SET /A rnd_num=!RANDOM! * 62 / 32768 + 1
    for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set pwd=!pwd!%%c
    )

    echo pwd=%pwd%


    which I put into a batch file: rand.bat
    However when I call rand.bat from another batch file, the environment variable pwd is no longer available. How do I get it to persist into the calling batch file?










    share|improve this question


























      1












      1








      1








      I found this batch file password generator:



      rem 16 stings pwd

      setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
      set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789

      set pwd=
      FOR /L %%b IN (0, 1, 16) DO (
      SET /A rnd_num=!RANDOM! * 62 / 32768 + 1
      for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set pwd=!pwd!%%c
      )

      echo pwd=%pwd%


      which I put into a batch file: rand.bat
      However when I call rand.bat from another batch file, the environment variable pwd is no longer available. How do I get it to persist into the calling batch file?










      share|improve this question
















      I found this batch file password generator:



      rem 16 stings pwd

      setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
      set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789

      set pwd=
      FOR /L %%b IN (0, 1, 16) DO (
      SET /A rnd_num=!RANDOM! * 62 / 32768 + 1
      for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set pwd=!pwd!%%c
      )

      echo pwd=%pwd%


      which I put into a batch file: rand.bat
      However when I call rand.bat from another batch file, the environment variable pwd is no longer available. How do I get it to persist into the calling batch file?







      windows batch-file






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited 3 hours ago









      LotPings

      5,4011923




      5,4011923










      asked 3 hours ago









      dacferdacfer

      154




      154




















          1 Answer
          1






          active

          oldest

          votes


















          3














          Exiting the called batch implies an Endlocal which discards all created local variables.



          To overcome this include an Endlocal command and on the same line repeat the set command.



          rem 16 stings pwd

          setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
          set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789

          set pwd=
          FOR /L %%b IN (0, 1, 16) DO (
          SET /A rnd_num=!RANDOM! * 62 / 32768 + 1
          for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set "pwd=!pwd!%%c"
          )

          echo pwd=%pwd%
          Endlocal & set "pwd=%pwd%" & goto :Eof





          share|improve this answer























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            1 Answer
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            active

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            active

            oldest

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            3














            Exiting the called batch implies an Endlocal which discards all created local variables.



            To overcome this include an Endlocal command and on the same line repeat the set command.



            rem 16 stings pwd

            setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
            set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789

            set pwd=
            FOR /L %%b IN (0, 1, 16) DO (
            SET /A rnd_num=!RANDOM! * 62 / 32768 + 1
            for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set "pwd=!pwd!%%c"
            )

            echo pwd=%pwd%
            Endlocal & set "pwd=%pwd%" & goto :Eof





            share|improve this answer



























              3














              Exiting the called batch implies an Endlocal which discards all created local variables.



              To overcome this include an Endlocal command and on the same line repeat the set command.



              rem 16 stings pwd

              setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
              set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789

              set pwd=
              FOR /L %%b IN (0, 1, 16) DO (
              SET /A rnd_num=!RANDOM! * 62 / 32768 + 1
              for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set "pwd=!pwd!%%c"
              )

              echo pwd=%pwd%
              Endlocal & set "pwd=%pwd%" & goto :Eof





              share|improve this answer

























                3












                3








                3







                Exiting the called batch implies an Endlocal which discards all created local variables.



                To overcome this include an Endlocal command and on the same line repeat the set command.



                rem 16 stings pwd

                setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
                set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789

                set pwd=
                FOR /L %%b IN (0, 1, 16) DO (
                SET /A rnd_num=!RANDOM! * 62 / 32768 + 1
                for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set "pwd=!pwd!%%c"
                )

                echo pwd=%pwd%
                Endlocal & set "pwd=%pwd%" & goto :Eof





                share|improve this answer













                Exiting the called batch implies an Endlocal which discards all created local variables.



                To overcome this include an Endlocal command and on the same line repeat the set command.



                rem 16 stings pwd

                setlocal ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
                set alfanum=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789

                set pwd=
                FOR /L %%b IN (0, 1, 16) DO (
                SET /A rnd_num=!RANDOM! * 62 / 32768 + 1
                for /F %%c in ('echo %%alfanum:~!rnd_num!^,1%%') do set "pwd=!pwd!%%c"
                )

                echo pwd=%pwd%
                Endlocal & set "pwd=%pwd%" & goto :Eof






                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered 3 hours ago









                LotPingsLotPings

                5,4011923




                5,4011923



























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