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Windows Command Line Special Characters


By contrast, the OP's problem is very specific: needing to deal with an auto-generated batch file that is ill-formed: % signs are not properly escaped in it. set "test=^...!" :: test=^...! :: ! Nor does a caret before the exclamation mark work, unless quoted (i.e. about how it works and setlocal /? http://webstrategy360.com/batch-file/batch-file-to-rename-accented-characters.html

Contact Failed Mail Donate Escape Characters All DOS versions interpret certain characters before executing a command. Adding the escape character before a command symbol allows it to be treated as ordinary text. Join them; it only takes a minute: Sign up Batch character escaping up vote 14 down vote favorite 5 I'm fairly proficient at writing Batch scripts for Windows, but even after With respect to parsing, the ^ effectively changes the variable name to include the ^, and, on the command line, a reference to an undefined or empty variable is retained as http://www.robvanderwoude.com/escapechars.php

Windows Command Line Special Characters

Error with using \frac in an equation Illustrator: how to bring fill in front of the stroke? Example launcher.bat "abc>def&geh%ijk|lmn^opq!" The only remaining problematic special character seems to be the quotation mark. [Edit/Improve] I create another way to retrieve a parameter, I assume it can accept any string For the second example, where we want to pass the parameter literal "^, it's still necessary for the user to double-escape the caret as shown. –Paul Urban Oct 7 '10 at I get the file with the % sign as: file%20name.txt.

The reason %2 is disappearing is that the batch file is substituting the second argument passed in, and your seem to not have a second argument. The "^ disrupter" trick won't work properly in double-quoted strings, because the ^ will be retained in the output. between the parenthesis), if backq is used" These characters are "required [to be escaped] only in the FOR /F "subject" (i.e. Batch File Escape Forward Slash Working without Quotes Without surrounding quotes, a long filename will be passed as %1 %2 %3...

Browse other questions tagged windows scripting batch-file or ask your own question. Windows Command Line Escape Space Can cloture for position nominations ever be returned to 60/100 in senate? How can a camera be both 12MP and 1080p, when 1920x1080 is just 2,073,600? http://stackoverflow.com/questions/1907057/ignore-percent-sign-in-batch-file Enthusiastically Russianify a String What's the purpose of having the cat right after the exhaust manifold What is a Personal Word™?

literal must be escaped as ^! Echo Special Characters Bash Show Ignored Content As Seen On Welcome to Tech Support Guy! p.s. I ended up using environment variables instead to pass the necessary information.

Windows Command Line Escape Space

To save a directory path with a trailing backslash (\) requires adding a second backslash to 'escape the escape' so for example instead of "C:\My Docs\" use "C:\My Docs\\" To be However, the quotes themselves will be passed to the command too, unlike the double percent sign. Windows Command Line Special Characters asked 5 years ago viewed 27686 times active 1 year ago Blog Stack Overflow Podcast #100 - Jeff Atwood Is Back! (For Today) Developers without Borders: The Global Stack Overflow Network Batch File Symbols And Characters Yes, my password is: Forgot your password?

Browse other questions tagged batch-file escaping or ask your own question. http://webstrategy360.com/batch-file/batch-file-rename-command.html Why does Cassian think the Guardians of the Whills are just causing trouble for everybody? share|improve this answer edited Aug 26 '15 at 17:05 answered Apr 15 '13 at 15:22 Kenny Evitt 4,24133147 3 I have always found Rob Vanderwoude's web site to be an Sometimes the escape character is backslash, sometimes it is percent, other times it is double-double quote. Command Line Escape Linux

All rights reserved. Normally using a ^ (caret) would work, but for % signs you need to double up. set "tmp=!param1:~1,4!" Now the parameters can be surround by quotation marks, so there the carets aren't neccessary anymore. have a peek at these guys literal call set test=!var! ^^^^ ^^! :: test=hello ^ ! :: Delayed expansion phase occurs in the 1st pass only :: CALL doubling protects the unquoted ^ literal in the 2nd

more hot questions question feed about us tour help blog chat data legal privacy policy work here advertising info developer jobs directory mobile contact us feedback Technology Life / Arts Culture Batch Escape Pipe And overall I think enclosing the argument in quotes is easier and less error-prone than to escape every character that needs escaping in there. –Joey Aug 25 '09 at 11:42 will always echo the current value verbatim, without the need of any escaping.

This has obviously happened at least once before ;) Percent Sign % can be escaped as %% – "May not always be required [to be escaped] in doublequoted strings, just try"

That seems inelegant, but worth some experimentation... How to fix it? a single doublequote must be replaced by 2 doublequotes. Dos Special Characters List RoomModel class Why does one have to check if axioms are true?

Again, is there any tool that can assist in escaping any string for use on the BATCH command line? However, I don't want the user to have to use 3 carets every time in these cases just because they happen to be calling a CMD script instead of an EXE. I have not yet tried expanding the whole string into a file, and then calling the file. check my blog The delayed expansion state also makes no difference.

Join them; it only takes a minute: Sign up How to avoid cmd.exe interpreting shell special characters like < > ^ up vote 10 down vote favorite 5 I have a Perhaps something that allows me to paste in a "normal" string and it spits out the correctly escaped version of that string? How to switch between 2 Steam accounts on one PC without having to enter mobile code every time? Linked 73 How does the Windows Command Interpreter (CMD.EXE) parse scripts? 1 Batch: Set password with special characters to variable Related 428How can you echo a newline in batch files?1Double-Quotes in

The only problem is to get the parameters into a variable. Ask higher salary than the one advertised? Style Default Style Contact Us Help Home Top RSS Terms and Rules Copyright © TechGuy, Inc. Therefore you need to escape the exclamation mark and the caret must be escaped as there is one exclamation mark in the line, quotes are useless in that situation.

The only thing left is to explain why I append a # to %1. Windows NT and OS/2 also allow the use of carets (^) to escape special characters. Multiple-choice: sum of primes below 1000 Why does Cassian think the Guardians of the Whills are just causing trouble for everybody? Example of an algorithm that lacks a proof of correctness How to know when a pen test is complete?

This way, when your program tries to fetch the second parameter when it hits the %2 in the text name, it will replace the %2 with an escaped %2, leaving the share|improve this answer answered Mar 18 '12 at 14:40 jeb 45.7k9104127 So for example, how would the escaped form of @##&!$^&%**(&) look like if you set the value before