system() / shell_exec() / etc. doesn't work! Why not?
Hosting FAQ - OPU WikiThis is a security precaution to prevent scripts from gaining unauthorized access to other parts of the system. In the future we may allow other programs to be executed (for example, MediaWiki uses texml for it's math symbols) but currently it is not possible to execute programs. Sockets and other types of remote connections are disabled because they use extra system resources and are generally unnecessary for most users.
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The Cygwin FAQThere are two basic problems you might run into. One is the fact that /bin/sh is really ash, and is missing some features you might expect in /bin/sh, particularly if you are used to /bin/sh actually being bash (Linux) or ksh (Tru64). For example: Or, it could be a permission problem, and Cygwin doesn't understand that your script is executable. Because 'chmod' may not work (see FAQ entry above), Cygwin must read the contents of files to determine if they are executable.
Related QuestionsHow do I execute a shell command via system exec?
The LabVIEW FAQ - The Block DiagramThe exec VI function can be used to send shell commands. Include the shell call with the commands that are desired. For example under Windows operating systems the call is to command.com. For example, the string to copy filea to a drive would be
Related QuestionsThe exec function doesn't seem to work under Perl for ISAPI or PerlScript. Why not?
ActivePerl faq5 - Implementation QuirksPerl for ISAPI and PerlScript share a process space with the web server and any number of other extensions. As a result, the exec() function is unimplemented, because it would cause the web server to terminate (the exec() function executes a system command and never returns).
Related QuestionsWhat if it doesn't work?
The Society for Clinical & Medical Hair Removal, Inc. | ...If the area being treated does not respond as described in the consultation and if there are other arising health problems, (ie., irregular periods, weight gain, etc.) discuss this with the electrologist so a medical treatment plan can be implemented if necessary.
Related QuestionsLasik laser eye surgery from Ultralase: Frequently asked que...After treatment, the eyes go through a natural recovery period. For 97% of patients, the results reach the target standard of vision - or better. A few people do not quite achieve the desired standard of vision - for these people, a re-treatment can be one option. Remember all your aftercare is backed up by our unique Lifetime Care Guarantee.Related Questions
Frequently Asked Questions About Molluscum and ZymaDermWe can't guarantee that ZymaDerm will work for you, but we do offer a 6 month money back guarantee to help assure your satisfaction. If you are not happy let us know and we will give you a refund up to 6 months from the date of purchase. No conditions, no exceptions. (Please don't cheat. Thank you).Related Questions
Why does zsh not work in an Emacs shell mode any more?
Z-Shell Frequently-Asked QuestionsEmacs 19.29 or thereabouts stopped using a terminal type of "emacs" in shell buffers, and instead sets it to "dumb". Zsh only kicks in its special I'm-inside-emacs initialization when the terminal type is "emacs". Probably the most reliable way of dealing with this is to look for the environment variable $EMACS, which is set to t in Emacs' shell mode. Putting [[ $EMACS = t ]] && unsetopt zle in your .zshrc should be sufficient.
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Better Diabetes Care - Frequently Asked QuestionsLet us know, so we can fix it or remove the button. Go to the Contact Us section and click on "Comments/Broken Links." Introduction Overview & Background :: Needs: Priorities for Systems Change :: Framework: Assess Needs & Goals Evaluation: Measuring Change :: Toolbox: Links & Resources :: Forum: Feedback, Input & Comments
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Flexcin.comFlexcin comes with a 3-Bottle, 100% unconditional money back guaratee. If you are not completely satisfied with your results you may return the unused portion for a refund of the purchased price.
Related QuestionsWhy doesn't my password work for the forums?
BitWise IM - FAQYour BitWise password and your BitWise Forums password are separate entities; changing one will not change the other. Please be sure that you are using the correct password to log in.
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Chiropractic Frequently Asked QuestionsIf we are talking about pain management, then we will refer you to other specialists who may be able to help you and co-manage your health, if that is what is decided. Most patients don't let their health get to that point, as they know the importance of regular chiropractic checkups. Remember, it is impossible to receive a specific chiropractic adjustment without a healing process occurring. Your health is our primary goal.
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Apache Server Frequently Asked QuestionsYou need to use it with a URL in the form "/foo/bar" and not one with a method and hostname such as "http://host/foo/bar". See the ErrorDocument documentation for details. This was incorrectly documented in the past.
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Frequently Asked QuestionsSome sound drivers only preview correctly when the preview sample rate is the same as the sample rate or 1/2 the sample rate. Try a different preview sample rate and see if that fixes things.
Related QuestionsIceland Health: FAQ's and Search the SiteSome people feel the effects right away such as an increase in energy or sleeping more soundly. Others have to take it for a few months before they notice the maximum benefits. However, your doctor can look at your blood work and tell you if it's working - i.e. Lower cholesterol levels, improved circulatory and cardiovascular function, etc. Omega-3 is an essential nutrient that your body requires and one that cannot be manufactured in our bodies.Related Questions
My computer doesn't work on campus. What's going on?
Frequently Asked QuestionsStudents using a computer on the BC network will need to reactivate (https://activate.bc.edu) to access the Internet. Student activation is an annual process. The O'Neill Campus Technology Resource Center can provide help if you're having access problems.
Related QuestionsMy gyro doesn't work as well as it should. What can I do about this?
FAQ - Dmoz/Recreation/Aviation/Model_Aviation/Radio_Controll...First of all, you should know that optimal gyro performance requires pretty much everything on the helicopter to be well balanced and working smoothly. This includes the engine and drivetrain - any vibration will "confuse" the gyro sensor and degrade performance. Any fluctuations in engine performance will make more work for the gyro as well. Is the gyro gain high enough? If you can turn it up without causing the tail to wag, you should do so.
Related QuestionsWhat happens if the block doesn't work?
FAQ's (Frequently Asked Questions) about Epidurals, Selectiv...The blocks work about half of the time and do not work half of the time. Even if they do not work, they rarely cause harm. When they do not work, your doctor will choose a different treatment. There are many other ways to cure neck and back pain.
Related QuestionsOne of the links on YND doesn't work, what do I do?
Neomail me straight away so I can fix it. Do not be afraid, I do not take you correcting me as an insult.
Related QuestionsHTTP Upload doesn't work for me. What should I do?
Willing Webcam FAQ - Frequently Asked QuestionsYou have to upload the wwsubmit.php script file from the '\Program Files\Willing Webcam\Web Pages\HTTP Upload\PHP' directory to your web site. Most web hosting services have a PHP engine. Fill the HTTP Upload > Script Address field with URL of this script. The behavior of http upload is affected by settings in php.ini at the web hoster side. Usually these settings are workable for you by default. The program saves some diagnostic info to the '\Program Files\Willing Webcam\ww.
Related QuestionsWhy doesn't the code a[i] = i++; work?
Infrequently Asked Questions in comp.lang.cPeople keep saying the behavior is undefined, but I just tried it on an ANSI-conforming compiler, and got the results I expected. They were probably wrong. Flame them mercilessly. Be sure before you do that your compiler is really ANSI conforming, though. If it turns out you were wrong, they get a legal claim on your first-born. No. To force order of evaluation, you must threaten it. Take the comma operator hostage. Using it, you can force the other operators to do what you want.
Related QuestionsWhy doesn't my password work?
Motor Fuels Frequently Asked Questions (FAQ's) - Board of Eq...Improper capitalization: The password is case-sensitive. Be sure to check your "Caps Lock" button on your keyboard, and make sure that you are entering any characters of your password in the proper case. times, due to unanticipated demand, our Web site may be temporarily unavailable. Typically, you'll be able to complete your task if you simply wait a moment and try again.
Related QuestionsWhy doesn't my scroll-wheel work?
Haxial FAQBecause you are using MacOS 9. The scroll wheel works in MacOS X and MS Windows, but not MacOS 9 until/if Apple updates it like they did with MacOS X, which will never happen because Apple has ceased development on MacOS 9. So the only solution is to upgrade to MacOS X. Can you notify me / e-mail me when there is a new version / update / upgrade? Yes. Join Haxial's Announcement Mailing List.
Related QuestionsWhy doesn't /waffle/system/mailsig work?
news.answers/waffle-faqThe different names are only for the user's personal signature. If you have a system default signature, /waffle/system/sig, it is applied to all messages.
Related QuestionsE1. Why doesn't read() work with every?
Icon Programming Language FAQevery s := read() do {...} doesn't loop because read() produces a single value and then fails if resumed. Other "consumer" procedures such as get() and pop() work the same way. Use a while loop with these procedures, and save every for use with generators such as !x or key(T).
Related QuestionsWhy is /bin/sh so minimal? Why doesn't FreeBSD use bash or another shell?
Frequently Asked Questions for FreeBSD 2.X, 3.X and 4.XThe more complicated answer: many people need to write shell scripts which will be portable across many systems. That is why POSIX specifies the shell and utility commands in great detail. Most scripts are written in Bourne shell, and because several important programming interfaces ( make(1), system(3), popen(3), and analogues in higher-level scripting languages like Perl and Tcl) are specified to use the Bourne shell to interpret commands.
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