setenv

来源： https://stackoverflow.com/questions/34300527/how-do-i-program-my-own-setenv

来源： https://stackoverflow.com/questions/34300527/how-do-i-program-my-own-setenv

问题 I just setted up a local environament with same code that I had in production environament into a vagrant virtual machine with ubuntu32, The thing is that I got Internal Server Error with all my rules in the .htaccess file So I started removing separated blocks of code and this was the trouble: # 1 weeks <FilesMatch "\.(js|css)$"> Header set Cache-Control "max-age=604800, public" </FilesMatch> # 1 weeks <FilesMatch "\.(ico|pdf|flv|jpg|jpeg|png|gif|swf)$"> Header set Cache-Control "max-age

问题 I would like to use the return of the command 'gpio input' in an if statement in U-Boot but it doesn't seem to work. So I've tried something like : if test {gpio status 50} -eq 1; then echo 1; else echo 0; fi; But it always return 1 whether the GPIO is high or low. I also tried to store the result of the gpio status command into a variable by using the setenv command but it doesn't work either. PS: I've modified the gpio.c file in the U-boot source code so the command returns just '0' or '1'

问题 I can't use setenv() from stdlib.h for C99 standard compiler as it is not available. Is there any other function to set an environment variable in C99? 回答1: getenv is thus part of the C90 standard which is included in C99 but setenv is only conform to an IEEE standard so it hasn't to be included in strictly standard C99. Moreover, the corresponding IEEE is from 2001. This means there isn't any standard way of doing this in C99, you have to use platform-specific code to set the env. On the

问题 On OS X, the man page for fork says this: There are limits to what you can do in the child process. To be totally safe you should restrict yourself to only executing async-signal safe operations until such time as one of the exec functions is called. All APIs, including global data symbols, in any framework or library should be assumed to be unsafe after a fork() unless explicitly documented to be safe or async-signal safe. If you need to use these frameworks in the child process, you must

问题 When I set an environment variable launchctl setenv FOO test I can fetch the value by launchctl getenv FOO which returns me 'test', but a simple echo $FOO doesn't substitute, the result is empty. In same terminal as well as in new terminal. Background: Yosemite 10.10 doesn't support /etc/launchd.conf anymore for system wide settings, so Setting environment variables via launchd.conf no longer works in OS X Yosemite/El Capitan/macOS Sierra? looks pretty promising, but I need the access to the

问题 Is there anyway to use the value set in a SetEnv on the RewriteRule statement? Example: SetEnv MY_SCRIPT myScript.php rewriteEngine on RewriteRule ^(.*)$ %{MY_SCRIPT} [L] 回答1: According to http://httpd.apache.org/docs/2.0/env.html the SetEnv is called after the RewriteRule. Therefore it seems to be impossible to use any variable set via SetEnv in a RewriteRule- or RewriteCond-statement. Using SetEnvIf on the other hand is called before the RewriteRule and therefore Variables set there can be

问题 I'm using following in setenv to import the environment variable from where I run, but is there a way to import all the variables so that I don't really need to import one by one. e.g: {env:TEMPEST_CONFIG:} and {env:TEMPEST_CONFIG_DIR:} used to import these 2 variables. [testenv:nosetests] setenv = TEMPEST_CONFIG={env:TEMPEST_CONFIG:} TEMPEST_CONFIG_DIR={env:TEMPEST_CONFIG_DIR:} deps = {[testenv]deps} commands = find . -type f -name "*.pyc" -delete bash {toxinidir}/tools/setup.sh nosetests -

问题 I have a website that is basically set up as this: client_name.website.com ...where clientname is actually a wildcard. For every new customer, I create a subdomain basically. I need to automatically get the client name info directly from Apache. For example, if one comes throught: client1.website.com ...I would like to have apache do a SetEnv CLIENT_NAME client1 for me. Since I work with wildcard, it would be nice if this SetEnv would be done dynamically. Really pratical for great amounts of