I am writing a custom pluggable protocol handler, which is basically the following batch script:
#ECHO off
SET "FullPath=%~1"
explorer.exe "%FullPath%"
However if Windows Explorer passes a UNC with spaces it comes to the script with %20 instead of space:
\Groups\Group%20Micro\
instead of
\Groups\Group Micro\
Can you help me to figure out a batch script snippet replacing "%20" to " " or "\ " in the string please?
So far I found Replace Percent with Bang in String, but it requires somehow to replace % with %%, which is a separate task.
Thank you very much.
Eventually many thanks to Windows batch script url decoding I worked out desired snippet:
#ECHO off
SET "FullPath=%~1"
REM ECHO %FullPath% & PAUSE
SETLOCAL ENABLEDELAYEDEXPANSION
SET FullPath=%FullPath:smb:=%
SET FullPath=%FullPath:/=\%
SET FullPath=!FullPath:%%20= !
REM ECHO %FullPath% & PAUSE
explorer.exe "%FullPath%"
Related
Below you can find the content of the two example text files I will use, example1.txt and obf_example1.txt. The latter one contains the string of example1.txt at the end of the file but has some obfuscated strings before.
example1.txt:
adasdkasdaksdasdkjlasdjasndjasd.
obf_example1.txt:
ŠxpÃÒ² Ø-Gêÿ ój"f>ïí H€À(ø4$/+#6Ni9Pvü¶ |CF CÀ¾ý~ª-°à9ÉOÿ V[o¦.E…-Š ƒ9Ú\žê*D´ß()^“£¹ìÅjXÑÍ¥â(¨µ×d'«P|I*èSººº&)Ø|̉ òÔ®¥Ô$LÁ:9ŠLá{¶nZÒبNÙÀØ Œ‹0õ´Sék›áÇÉîÆbËF§BЄƒöZKaÒR ²°ÅšDn?+¶()IªP›$ÇEv©¡k€[ßè¨×q-Ëk!µTóPA²—: A ?ÉEEEGÐJúÌ©ÒWµHB¡aäXû|ÓË BPÁwr„Ûi¥åܺÈQ÷ORàSb,Šv¢D ,Žb’(2 öb¢wtKzíĦ#ï¯u©²Ù aîR隬ëÌTbà÷¥3ÄtSGì´R$)X Šù
'¹¨D³ÞeOK3!{·‹¦cäиNÅô:Na1žAÇ1ø8 &Fuôë %¸T¯_òMå†C"ý¤F ™º„Iµºí4Ü¡ˆc!ì•+3 ‰‹M K#JÁ«8¢bsL†!Ù“àšn·öMå•Œ&ýèvÀ}¨?¦hùÊò(É#Žf~5‰‘qØçþƒ‰Å²ÓÖÊJU•âNWÁ«L¼Y”$G¢ßè&§ÖÉØŒS‘WàË„°SØW Ш´_è%‚Å¢ø.ãÃð”#X ^þ*1þ‚q85¡lÒ‚Ò>‘¸ÿ £ôQôz#ø¤ÎõÚªï|Xö%;åÍËûGú+îUƒö³‰›p U±Ò ðtÜGÜÿ ð,åXÿ k8È I”ÿ “½¿Ð`¨u5=SÓqyFÈ É8ôã¨ð£è6’H#lÄ I10‚Ö§ÑdµÖ?t¡]D†9Zj,¥EɺÜEq¤#,ìn—¢º‚´€bc·ú¨Lû£ÿ Ó×ÿÙ||adasdkasdaksdasdkjlasdjasndjasd.
When I ran the following powershell command for example.txt in a batch file, it works and I get the output of example.txt:
#echo off
for /f "delims=" %%a in ('powershell Get-Content .\example.txt') do set _output=%%a
echo %_output%
adasdkasdaksdasdkjlasdjasndjasd
Good so far.
However, when I ran the above powershell command for obf_example1.txt, it does not work and I get the following error message:
'¹¨D³ÃzeOK3!{·â?¹Â¦cäÃ?Â?¸Â?NÃ.ô:Na1žAÃ╬1ø8
The command "FuôëÂ" is either misspelled or could not be found.
The command "ýèvÃ?}¨?¦hùÃSÂ?ò" is either misspelled or could not be found.
Why? Never mind I thought: As I am only interested in the last n characters both in example1.txt and obf_example1.txt accordingly, my idea was to extract the last n characters and check if I can see the output of obf_example1.txt then. To check if my idea works, I run the following command for example1.txt to get the last 4 characters as an example:
#echo off
for /f "delims=" %%a in ('powershell $a=Get-Content .\example.txt; $a.substring^(0,$a.length-4^)') do set _output=%%a
echo.%_output%
It doesn't show me anything though. %_output% seems to be empty. How to fix that? And will the fixed version work for obf_example1.txt as well so that I get an output there instead of the above error message?
Apparently, the piece of text you are after is behind the ||.
With PowerShell you can easily get that by using
((Get-Content 'D:\Test\obf_example1.txt' -Raw) -split '\|\|')[-1]
Returns
adasdkasdaksdasdkjlasdjasndjasd
Isn't htis what you want?
You could try reading the last 4 bytes, if you really are taking text characters from what is clearly not a text file. (My guess is that it is text hidden inside a binary file, probably a graphic file).
#For /F Delims^=^ EOL^= %%G In (
'%__AppDir__%WindowsPowerShell\v1.0\powershell.exe -NoP^
"$f=[IO.File]::OpenRead('C:\Users\Ferit\Desktop\obf_example1.txt');"^
"$f.Seek(-4,[System.IO.SeekOrigin]::End)|Out-Null;$buffer=new-object Byte[] 4;"^
"$f.Read($buffer,0,4)|Out-Null;$f.Close();"^
"[System.Text.Encoding]::UTF8.GetString($buffer)"')Do #Set "_output=%%G"
#Set _output 2>NUL&&Pause
Don't forget to modify the text file path, (on line 3), and the three instances of 4 if you want more or less bytes. The last line is included just to show you the output, (you would obviously replace that with your own code).
The following works for me to get the "clear-text" part after || (from your example):
for /f "delims=" %%a in (.\obf_example1.txt) do set "_output=%%a"
set _output
echo testing last 10: %_output:~-10%
set "_output=%_output:*||=%"
set _output
echo %_output%
(it might not work with different encodings of the text file)
(Consider Powershell - cmd has a limit on line length and can easily be overwhelmed)
I am making a API for Batch. One of its functions is a colortext, which uses PowerShell (and findstr if PowerShell is not supported on the machine) to do its work. (It simply converts the batch color given, like 3C, converts it to PowerShell-friendly names, like DarkCyan and Red, and prints the text given in color using more things.)
However, when I try to set the foreground as F (White), for some reason it tries to execute it 2 or 4 times (depending if I have Delayed Expansion enabled or not).
It sometimes fails on the last run/try showing the same thing if the supposed %fcn% and %bcn% never were applied. (this also depends if I have Delayed Expansion enabled or not).
I only want this to execute one time (and not fail for whatever reason), but it's executing 2 or 4 times for some reason. How would I do/fix this program?
Here's the minimal code needed to reproduce this problem, assuming %bcn%, %fcn% and %text% are already set (let's say Cyan as %bcn% and White as %fcn%, and Should not happen as %text%):
#echo off
set bcn=Cyan
set fcn=White
set text="This should not work"
setlocal EnableDelayedExpansion
set script=write-host %text% -ForegroundColor %fcn% -BackgroundColor %bcn%
if EXIST colortest.ps1 ( del colortest.ps1 )
echo %script% >> colortest.ps1
#echo on
#powershell -executionpolicy remotesigned -file colortest.ps1
#echo off
The output of this becomes:
If I do a color that works (like CD), with the same text:
EDIT: Since no one seems to say "Hey it's working perfectly", I meant about the second bogus execution, I know this works fine, I'm just trying to get rid of the bogus second execution.
Here is the entire code of the batch file (save it as bapi.bat and try to run "bapi colortext "This should not work" BF") in a pastebin:
http://pastebin.com/WyayVUVS
The problem can't be reproduced with the posted batch code and the values for the environment variables.
However some suggestions as partly also posted by aschipfl in his comment.
1. Deletion of a single file
The deletion of a single file can be done with either
if exist colortest.ps1 del colortest.ps1
or with
del colortest.ps1 2>nul
The first command line checks first if the file to delete exists and runs command DEL only if the file really exists.
The second command line runs the command DEL and redirects an error message written to handle STDERR to device NUL to suppress it. Command DEL outputs an error message if the file to delete does not exist at all.
On running just a single command after an IF or in a FOR loop it is really not necessary to write this command line in round brackets which define a command block. FOR and IF are designed for execution of a single command and using ( ... ) which defines a command block is just an extension of Windows command processor to be able to run multiple commands where a single command is expected by design.
2. Redirection to file with overwriting existing file
It is possible here to use just > instead of >> to create or overwrite colortest.ps1. This avoids the need to separately delete the file before.
See also the Microsoft article Using command redirection operators.
3. Space character between output text and redirection operator
On the command line
echo %script% >> colortest.ps1
there is a space character between environment variable reference %script% and redirection operator >>. This space character is also output by command ECHO and therefore also written into the file as trailing space.
This does not matter here, but often trailing spaces are not wanted in produced file. One solution is removing the space character and use:
echo %script%>> colortest.ps1
But this can result in an unexpected behavior if the string of environment variable script ends with a space and a single digit number in range of 1 to 9 as this results after preprocessing this command line before execution in 1>> colortest.ps1 or 2>> colortest.ps1, ... which is a redirection of handle 1 to 9 to file colortest.ps1 instead of printing 1 to 9 to handle STDOUT and finally to the file.
The solution is writing the redirection first and next the command
>>colortest.ps1 echo %script%
or use delayed expansion which would be here even better in case of script PowerShell script line contains special characters.
echo !script!>>colortest.ps1
The space character between >> and file name colortest.ps1 is ignored by Windows command interpreter.
4. Quoting parameter strings with special characters
The environment variable text could hold a text which requires double quoting this parameter string for correct processing by Windows command interpreter and by PowerShell. A space character (delimiter on command line) and the characters &()[]{}^=;!'+,`~<>| require often enclosing the entire parameter string in double quotes for being interpreted completely as literal text.
set "script=write-host "!text!" -ForegroundColor %fcn% -BackgroundColor %bcn%"
See also answer on Why is no string output with 'echo %var%' after using 'set var = text' on command line? why set "script=script line" is used instead of just set script=script line and why it does not matter how many double quotes are specified in the script line on assigning it to the environment variable.
5. Double quotes to output in text in PowerShell script file
To output also text containing 1 or more double quotes by the PowerShell script it is necessary to escape each double quote character with one more " before writing the text string into the script file colortest.ps1.
#echo off
setlocal EnableExtensions EnableDelayedExpansion
set "bcn=Cyan"
set "fcn=White"
set "text="This should not happen^^!""
set "text=!text:"=""!"
set "script=write-host "!text!" -ForegroundColor %fcn% -BackgroundColor %bcn%"
echo !script!>colortest.ps1
echo on
#powershell -executionpolicy remotesigned -file colortest.ps1
#echo off
endlocal
It can be seen here on this example that with delayed expansion already enabled on definition of text with a string containing also an exclamation mark to output as character additionally to the also to output two double quotes that the exclamation mark must be escaped with two caret characters ^^ for assigning the exclamation mark as literal character to environment variable text. That would not be necessary on definition of text before enabling delayed expansion.
#echo off
setlocal EnableExtensions DisableDelayedExpansion
set "text="This should not happen!""
setlocal EnableDelayedExpansion
set "bcn=Cyan"
set "fcn=White"
set "text=!text:"=""!"
set "script=write-host "!text!" -ForegroundColor %fcn% -BackgroundColor %bcn%"
echo !script!>colortest.ps1
endlocal
echo on
#powershell -executionpolicy remotesigned -file colortest.ps1
#echo off
endlocal
For details about the commands SETLOCAL and ENDLOCAL see this answer which explains in detail how these two commands work.
This is because, for some random reason which didn't happen to the rest, the call command executed 2 times, the second without setting any %fcn% and %bcn% parameters, when something like call :label was used.
However, this does not happen with goto label.
I am trying to execute bat file containing a loop.
When executing a loop, the file execution is aborted.
I modified a little the command to understand what is the error and it seems I cannot put simple quote into the loop.
/f "tokens=1,2 delims==" %%i IN ("version=X.Z.W") do set VERSION=%%j -> success
/f "tokens=1,2 delims==" %%i IN ('version=X.Z.W') do set VERSION=%%j -> failure
It is annoying as version=X.Z.W should be returned by findstr /B /c:"%var%=" ..\..\file.properties
I tested on different desk, and this issue occurs only on my computer.
Do you know if there is any settings to modify?
I have the issue when typing the command directly into a command prompt.
Thanks a lot for your help.
If you are typing the above directly into a command prompt, it will fail because you have used %% instead of %. Windows CMD doesn't read %% as it does processing a batch file.
And the ' as opposed to " are read differently by CMD. ' is read as a command where " is read as a literal string.
I am writing a batch script which I wish to open a file and then change the second line of it. I want to find the string "cat" and replace it with a value that I have SET i.e. %var% . I only want this to happen on the second line (or for the first 3 times). How would you go about doing this?
I just solve it myself. It will lookup var on line two only.
#echo OFF
SETLOCAL ENABLEEXTENSIONS ENABLEDELAYEDEXPANSION
SET filename=%1
set LINENO=0
for /F "delims=" %%l in (%filename%) do (
SET /A LINENO=!LINENO!+1
IF "!LINENO!"=="2" ( call echo %%l ) ELSE ( echo %%l )
)
But I prefer using cscript (vbscript or even jscript).
First of all, using a batch file to achieve this, is messy (IMHO). You will have to use an external tool anyway to do the string replacement. I'd use some scripting language instead.
If you really want to use a batch, this will get you started.
This would be ugly to do with native batch scripting. I would either
Do this in VBScript. If you really need this in a batch file, you can call the VBScript file from the batch script. You can even pass in %var% as an argument to the VBScript.
Use a sed script. There are windows ports of Unix commands like GnuWin32, GNU Utilities for Win32 (I use these), or Cygwin.
I would create a script that would:
scan the input file
write to a second output file
delete the input
rename the output
As far as the dos commands to parse, I did a Google Search and came up with a good starting point:
#echo off
setlocal enabledelayedexpansion
set file=c:\file.txt
set output=output.txt
set maxlines=5000
set count=0
for /F "tokens=* usebackq" %%G in ("%file%") do (
if !count!==%maxlines% goto :eof
set line=%%G
set line=!line:*000000000000=--FOUND--!
if "!line:~0,9!"=="--FOUND--" (
echo %%G>>"%output%"
set /a count+=1
)
)
(Stolen from teh Intarwebnet)
I am writing a batch file script using Windows command and want to change each occurrence of some blank space with "," What is the simplest way to do that?
If your users are a list of words on one line in a text file, separated by spaces, eg:
one two three four
Create a batch file SpaceToComma.bat as follows:
#echo off
setlocal
for /F "tokens=* delims= " %%a in (%1) do #set data=%%a
echo %data: =,%
endlocal
Then run it, you'll get the words separated by commas. Is this what you want?
C:\>SpaceToComma.bat data.txt
one,two,three,four
If you have a multi-line file, then this will do it:
data.txt
one two three four
five six seven
SpaceToComma.bat
#echo off
setlocal
for /F "tokens=* delims= " %%a in (%1) do #call :processaline %%a
endlocal
goto :eof
:processaline
setlocal
set data=%*
echo %data: =,%
endlocal
goto:eof
Output
C:\>SpaceToComma.bat data.txt
one,two,three,four
five,six,seven
(There's probably a clever way of doing this without the subroutine, using the !data! syntax for delayed variable expansion, but I couldn't get it to work with the substitution syntax.)
If this is not what you want, then please explain and I can try to help.
(PS: I delight in using batch files where people insist it can't be done.)
You could download sed.exe from http://unxutils.sourceforge.net/ and run this command:
sed -e "s/ /,/" infile.txt >outfile.txt
Well it will depend a lot on how you are getting the data, but you may be able to finagle something with a For-Do construct. Make the field seperator be a space then build the string back in the do with a , between each token. Might I suggest a more robust scripting language? You should have VBScript on just about any relatively modern windows bow.