Setting a variable from a text file - batch-file

I have the following:
FOR /f "tokens=*" %%a IN (%input%) do (
dsquery * forestroot -filter "(&(mail=%%a))" | dsget user -UPN >> p.txt 2> tmp.txt
set /p Error=<tmp.txt
echo %%a %Error% >> log.txt
)
The point is to create a list of usernames from a list of emails by querying an AD, which is not a problem. But I also want to send the errors to a log file, and something doesn't seem to be working when I send the temp.txt into the variable (I tried to add "echo %Error%" and all it says is "Echo is off"

You are using %error% in a block statement for ... in (...) do (this is a block)
A block is evaluated in one go, but you are changing the variable inside the block.
To get the changed variable, use delayed expansion:
At the start of your script write
setlocal enabledelayedexpansion
and inside the block use the (changed) value with !error! instead of %error%
Changing
echo %%a %Error% >> log.txt
to
echo %%a !Error! >> log.txt
should solve your problem (together with the setlocal enabledelayedexpansion).

Related

How to Fix Echo command nested in if statement

I am trying to create a script that will create another batch script. However this code will not run properly, immediately exiting as soon as the if statement is evaluated.
set yes=yes
pause
IF /I %yes% == yes (
ECHO REM Music>>mf.bat
ECHO FOR /f %%i in (C:\CopyToRoot\MusicFileAndLocation.txt) do set MusicFile=%%i>>mf.bat
)`
However if the second line in the if statement is removed the code executes without issue.
What am I doing wrong? is there something I am missing about the echo statement?
Perhaps:
#Echo Off
Set "yes=yes"
Pause
If /I "%yes%"=="yes" (
>"mf.bat" (
Echo #Echo Off
Echo Rem Music
Echo For /F "UseBackQ Delims=" %%%%A In ("C:\CopyToRoot\MusicFileAndLocation.txt"^) Do Set "MusicFile=%%%%A"
)
)
Double the percents and escape any internal closing parentheses.
You need to format the code block with a bit of effort, however, it is much simpler to get rid of the block and simply call a label. Also, the batch file will consume the % so you need to double them in order to redirect the string correctly to file.
#echo off
set yes=yes
pause
IF /I "%yes%"=="yes" call :final
goto :eof
:final
echo REM Music>mf.bat
echo FOR /f %%%%i in (C:\CopyToRoot\MusicFileAndLocation.txt) do set MusicFile=%%%%i>>mf.bat
Note I use single redirect on the first rem line to overwrite the file, else it will append each time you run the code, if that was the intention, simply do double redirect >>

how to set a variable for the value of " ping 8.8.8.8 | find /c "TTL=" " [duplicate]

This question already has answers here:
Assign output of a program to a variable using a MS batch file
(12 answers)
Closed 9 months ago.
I'm trying to assign the output of a command to a variable - as in, I'm trying to set the current flash version to a variable. I know this is wrong, but this is what I've tried:
set var=reg query hklm\SOFTWARE\Macromedia\FlashPlayer\CurrentVersion>
or
reg query hklm\SOFTWARE\Macromedia\FlashPlayer\CurrentVersion >> set var
Yeah, as you can see I'm a bit lost. Any and all help is appreciated!
A method has already been devised, however this way you don't need a temp file.
for /f "delims=" %%i in ('command') do set output=%%i
However, I'm sure this has its own exceptions and limitations.
This post has a method to achieve this
from (zvrba)
You can do it by redirecting the output to a file first. For example:
echo zz > bla.txt
set /p VV=<bla.txt
echo %VV%
You can't assign a process output directly into a var, you need to parse the output with a For /F loop:
#Echo OFF
FOR /F "Tokens=2,*" %%A IN (
'Reg Query "HKEY_CURRENT_USER\Software\Macromedia\FlashPlayer" /v "CurrentVersion"'
) DO (
REM Set "Version=%%B"
Echo Version: %%B
)
Pause&Exit
http://ss64.com/nt/for_f.html
PS: Change the reg key used if needed.
Okay here some more complex sample for the use of For /F
:: Main
#prompt -$G
call :REGQUERY "Software\Classes\CLSID\{3E6AE265-3382-A429-56D1-BB2B4D1D}"
#goto :EOF
:REGQUERY
:: Checks HKEY_LOCAL_MACHINE\ and HKEY_CURRENT_USER\
:: for the key and lists its content
#call :EXEC "REG QUERY HKCU\%~1"
#call :EXEC "REG QUERY "HKLM\%~1""
#goto :EOF
:EXEC
#set output=
#for /F "delims=" %%i in ('%~1 2^>nul') do #(
set output=%%i
)
#if not "%output%"=="" (
echo %1 -^> %output%
)
#goto :EOF
I packed it into the sub function :EXEC so all of its nasty details of implementation doesn't litters the main script.
So it got some kinda some batch tutorial.
Notes 'bout the code:
the output from the command executed via call :EXEC command is stored in %output%. Batch cmd doesn't cares about scopes so %output% will be also available in the main script.
the # the beginning is just decoration and there to suppress echoing the command line. You may delete them all and just put some #echo off at the first line is really dislike that. However like this I find debugging much more nice.
Decoration Number two is prompt -$G. It's there to make command prompt look like this ->
I use :: instead of rem
the tilde(~) in %~1 is to remove quotes from the first argument
2^>nul is there to suppress/discard stderr error output. Normally you would do it via 2>nul. Well the ^ the batch escape char is there avoids to early resolving the redirector(>). There's some simulare use a little later in the script: echo %1 -^>... so there ^ makes it possible the output a '>' via echo what else wouldn't have been possible.
even if the compare at #if not "%output%"==""looks like in most common programming languages - it's maybe different that you expected (if you're not used to MS-batch). Well remove the '#' at the beginning. Study the output. Change it tonot %output%==""-rerun and consider why this doesn't work. ;)
This is work for me
#FOR /f "delims=" %i in ('reg query hklm\SOFTWARE\Macromedia\FlashPlayer\CurrentVersion') DO set var=%i
echo %var%

How can I isolate a piece of a variable in a batch file, then save it as another variable?

Is there a way I can use a set command to isolate a few words from a variable given and then save that as another variable to use later?
If I say cd C:\users, can I take something like the C:\users and save that as a variable?
:inputstage
set /p input=Enter command:
if /i {%input%}=={get} (goto :get)
:get
set %input%==%getfile%
echo %getfile% >>Files to get.txt
call getfiles.bat
goto: inputstage
I input the following when it asks me to enter a command: "get index.html" and it then will take index.html and save it to a file called "files to get.txt" then it'll call up a piece of code that will run the command ftp -s:ftpreceive.bat that ftp receive file will then go and read the "files to get.txt" and see index.html and place that into the following ftp code get index.html(or whatever file I specify)
Can I get only a part of the input variable to become the variable getfile?
you seem to try to separate words from input or separate into <command> and <whatever>. In both cases, for is the way to go:
#echo off
setlocal enabledelayedexpansion
set "input=get something special"
echo method 1 (get "first word" and "rest"):
for /f "tokens=1*" %%a in ('echo %input%') do (
set "command=%%a"
set "param=%%b"
)
echo %command% : %param%
echo/
echo method2 (get every word):
set i=0
for %%a in (%input%) do (
set "_var[!i!]=%%a"
set /a i+=1
)
set _var

I want to run more than 1 command with the FOR /F

I'm trying to make a script to:
send a request to an url, then append (>>) the %%a variable i set in the FOR /F command IF i get a certain response from the command i run with FOR /F.
I tried with 2 scripts that are the followings:
FOR /F %%a in (usernames.txt) do (
IF "curl -k -d name=%%a https://club.pokemon.com/api/signup/verify-username" EQU "{"valid":true,"suggestions":[],"inuse":false}" %%a >> usernames1.txt
and
set /p VAR = < tmpFile
FOR /F %%a in (usernames.txt) do (
curl -k -d name=%%a https://club.pokemon.com/api/signup/verify-username
> tmpFile
IF VAR={"valid":true,"suggestions":[],"inuse":false}
%%a >> usernames1.txt)
EDIT: good enough with that script, thanks guys. but i've got another thing: can i add more than 1 variable to the script? I mean a variable like %%a, that takes every line from another txt file
First, you set VAR once, whereas your temporary file does not exist. Then you test with = instead of == and without the ! chars.
And don't put too many spaces like if you were using a real shell like bash :)
As Magoo noted, I also had to fix set /p VAR = < tmpFile to remove the extra spaces. Batch has a tendency to take them literaly.
(another example: echo foo > file: file now contains "foo ".
(needless to say that without enabledelayedexpansion it wouldn't work either because lots of things happen inside the FOR loop)
The fixed code (also had to protect the test string with extra quotes or it wouldn't work):
setlocal enabledelayedexpansion
del usernames1.txt >NUL 2>NUL
FOR /F %%a in (usernames.txt) do (
curl -k -d name=%%a https://club.pokemon.com/api/signup/verify-username > tmpFile 2>NUL
set /p VAR=<tmpFile
IF "!VAR!"=="{"valid":true,"suggestions":[],"inuse":false}" echo %%a >> usernames1.txt
)
I tested it with a random list of user names and changing "valid":true by "valid":false and the names were issued.

Find text within string line

I have a text file, that has some text with this syntax:
mytextfile.txt:
websiteurl1 username1 password1
websiteurl2 username2 password2
websiteurl3 username3 password3
And so on....
And I'd like to be able to find username and password strings by pointing the websiteurl, so let's say I tell the batch file,
find websiteurl3, it should print the username3 and password3
and I was able to write a "FOR LOOP" but I am not sure how to use the syntax of the loop, as my code finds only the last line always, here is what I have:
FOR /F "tokens=2,3 delims= " %%A IN (URL.txt) DO IF EXIST URL.txt (set WEBUserName1=%%A) && (SET WEBUserPass1=%%B)
pause
echo Username:"%WEBUserName1%"
echo Password:"%WEBUserPass1%"
pause
exit
I know the loop is looking on the "URL.txt" for the tokens 2 and 3, and then sets the variables accordingly, what I'd like to know, is how I can use the loop, or if needed, any other command to be able to:
Find the "URL.txt file
Then find the specific string, in this case, the first word of the specified string line
Then find tokens 2 and 3 of that string line.
And I'd like to be able to find username and password strings
Use the following batch file.
test.cmd:
#echo off
setlocal enabledelayedexpansion
for /f "tokens=2,3" %%a in ('type mytextfile.txt ^| findstr "%1"') do (
echo Username:"%%a"
echo Password:"%%b"
pause
exit
)
endlocal
Notes:
Pass the website URL string as a parameter to the batch file.
findstr is used to find the matching line from the file, so we only need to parse a single line using for /f.
Example usage and output:
F:\test>type mytextfile.txt
websiteurl1 username1 password1
websiteurl2 username2 password2
websiteurl3 username3 password3
F:\test>test websiteurl3
Username:"username3"
Password:"password3"
Press any key to continue . . .
Further Reading
An A-Z Index of the Windows CMD command line - An excellent reference for all things Windows cmd line related.
findstr - Search for strings in files.
for /f - Loop command against the results of another command.
type - Display the contents of one or more text files.
bad way, but this too work:
#echo off
setlocal
set srch_site=websiteurl2
FOR /F "tokens=1,2,3 delims= " %%A IN (URL.txt) DO (
IF EXIST URL.txt (
if "%%A"=="%srch_site%" (
(set WEBUserName1=%%B) && (SET WEBUserPass1=%%C)&goto:stdout
)
)
)
:stdout
pause
echo Username:"%WEBUserName1%"
echo Password:"%WEBUserPass1%"
pause
exit
May I offer you a different approach?
The code below get all usernames and passwords and store they in two vectors:
#echo off
setlocal EnableDelayedExpansion
for /F "tokens=1-3" %%A in (URL.txt) do set "User[%%A]=%%B" & set "Pass[%%A]=%%C"
After that, you may test if the username and password of a certain site was given this way:
set "site=websiteurl3"
if defined User[%site%] echo The site "%site%" have username and password
... or display their values this way:
echo Username:"!User[%site%]!"
echo Password:"!Pass[%site%]!"
You may review a detailed explanation of array management in Batch files at this post.
You get the last line, because you process the whole file. Filter your textfile and process only that one line:
set "site=websiteurl2"
FOR /F "tokens=2,3 delims= " %%A IN ('find "%site%" URL.txt') DO (
set "usr=%%A"
set "pwd=%%B"
)
echo %usr%, %pwd%

Resources