CODEWITHSUNDEEP
batch-filemappingdrive
Vlad Belo
Vlad Belo

Reputation: 63

Batch Script that check if a network drive exists, if does, do nothing, if doesnt - map the path

I'm trying to create a mapping script that mapping a network drive and I want to add a checking if the drive letter exist, then Do nothing just show 'Drive is in use' and if not exist, map it.

this is what i got so far:

@echo off
@net use G: /delete /yes
@net use G: \\domainIP\shared folder /user:username password /persistent:yes 

:DONE
:EXIT
@pause

please help.

Upvotes: 1

Views: 13399

Answers (4)

VonC
VonC

Reputation: 1329542

I have this one (VonC/setupsenv#installs/drive_detection.bat), based on the target mapped path.

It looks for the path, check there is a drive, and, if that drive is "Unavailable", it will launch an explorer.exe in order to force the drive to be accessed/available again.
There is a simpler option with Powershell.

The reactivation process (where explorer.exe is launched, in order to "refresh" an existing drive displayed as "Unavailable") is:

:ActivateMappedNetworkDrive
set PROCESSNAME=explorer.exe
set PREFIX=start /min
set SUFFIX=%1

rem echo ~~~~~~~~~~~~~~~azerty
rem First save current pids with the wanted process name
set "RETPIDS="
set "OLDPIDS=p"
for /f "TOKENS=1" %%a in ('wmic PROCESS where "Name='%PROCESSNAME%'" get ProcessID ^| findstr [0-9]') do (set "OLDPIDS=!OLDPIDS!%%ap")

rem Spawn new process(es)
%PREFIX% %PROCESSNAME% %SUFFIX%

rem Wait for a second (may be optional)
REM choice /c x /d x /t 1 > nul
C:\Windows\System32\timeout.exe /t 5 > NUL

rem Check and find processes missing in the old pid list
for /f "TOKENS=1" %%a in ('wmic PROCESS where "Name='%PROCESSNAME%'" get ProcessID ^| findstr [0-9]') do (
if "!OLDPIDS:p%%ap=zz!"=="%OLDPIDS%" (set "RETPIDS=/PID %%a !RETPIDS!")
)

rem Kill the new threads (but no other)
taskkill %RETPIDS% /T > NUL 2>&1
goto:eof

Upvotes: 0

Filipus
Filipus

Reputation: 540

How about simply using:

if exist G:\ (echo Drive is in use) ELSE (net use G: \\domainIP\shared folder /user:username password /persistent:yes)

Upvotes: 1

CatCat
CatCat

Reputation: 491

if not exist r:\ net use r: \\127.0.0.1\C$

although if R: is always C$ then there is no need to test. Testing is wrong. It chews battery power, CPU cycles, Hard disk hits, etc.

So

net use r: \\127.0.0.1\C$

Will map it if it's not already mapped, else it will fail.

Upvotes: 0

S. Brottes
S. Brottes

Reputation: 204

This will check if the network drive exist

net use | find "G:"
if %errorlevel%==0 goto :exist
@net use G: \\domainIP\shared folder /user:username password /persistent:yes
goto :end
:exist
@echo Drive is in use
:end

Upvotes: 1

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