environment

问题 In a C project (POSIX), how do I get the fully qualified name for the current system? For example, I can get just the hostname of my machine by doing gethostname() from unistd.h. This might give me machine3 in return, but I'm actually looking for machine3.somedomain.com for example. How do I go about getting this information? I do not want to use a call to system() to do this, if possible. 回答1: To get a fully qualified name for a machine, we must first get the local hostname, and then lookup

问题 I've installed Anaconda and created two extra environments: py3k (which holds Python 3.3) and py34 (which holds Python 3.4). Besides those, I have a default environment named 'root' which the Anaconda installer created by default and which holds Python 2.7. This last one is the default, whenever I launch 'ipython' from the terminal it gives me version 2.7. In order to work with Python 3.4, I need to issue the commands (in the shell) source activate py34 ipython which change the default

问题 Is it possible to change current directory from a script? I want to create a utility for directory navigation in Bash. I have created a test script that looks like the following: #!/bin/bash cd /home/artemb When I execute the script from the Bash shell the current directory doesn't change. Is it possible at all to change the current shell directory from a script? 回答1: You need to convert your script to a shell function: #!/bin/bash # # this script should not be run directly, # instead you

问题 using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace ConsoleApplication { class Program { static void Main(string[] args) { var x = Environment.GetResourceString("test"); //compile-time error } } } The error is: 'System.Environment' does not contain a definition for 'GetResourceString'. EDIT : OP has stated that he's using the Compact Framework, v3.5. I dont get the picture, what's wrong with my code? Thanks! 回答1: Environment.GetResourceString

问题 How do i set it in the Linux environment? I keep getting the below error. I am assuming its because i have to set the -Djava path . in eclipse i set in the arguments in the run configuration. java.lang.UnsatisfiedLinkError: /opt/apache-tomcat-8.0.33/temp/librocksdbjni1678787310187961141..so: libgflags.so.2: cannot open shared object file: No such file or directory at java.lang.ClassLoader$NativeLibrary.load(Native Method) at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1941) at java

问题 On our as/400 we have a test environment and a productive environment. Once we tested our programs are working, we can put them in the productive environment. Both environments contain a similiar set of libraries. The basic mechanism to tell our programs, in which environment they work, are liblists used for the jobs they run in. That works great, for some things, but for others it doesn't. Therefore we often have a parameter passed to the programs on job submission, that tells the program to

问题 I'd like to use "$WORSKPACE" variable into a groovy file called by jenkins script. But all solutions found on SO failed : // KO : Wks = build.getEnvironment(listener).get('WORKSPACE') // KO : Wks = "${WORKSPACE}" /* KO : def thr = Thread.currentThread() def build = thr?.executable def envVarsMap = build.parent.builds[0].properties.get("WORKSPACE") */ // KO : def build = this.getProperty('binding').getVariable('build') // KO : Wks = "%WORKSPACE%" Message I got : Scripts not permitted to use

问题 Hoping someone can point me in the right direction. I am trying to configure HAProxy to use an environment variable (from the operating system) as part of an acl statement. So if the environment variable is set to true when HAProxy is started or reloaded then access is granted. If the environment variable is set to false then I would just want the NOSVR error to be generated. I know that if I also put in a rule that says use_backend ftp1-srv unless accessFtp then the request goes through OK

问题 Is there a way how to force parent function to return an output? Say I have a function that 'does something' and at the beginning of each function a want to 'check something'. If the check fails I want to return 'something else'. In my example below 'does something' is logarithm, 'check something' means checking that the variable is nonnegative and 'something else' is minus infinity. weird_log <- function(x) { check(x) log(x) } check <- function(x) { if (x <= 0) eval.parent(parse(text =

问题 When running jetty project under IntelliJ I have no problem to read environment variable I set to /etc/environment using the System.getenv("var1") api. When I deploy the war to Ubuntu server that start Jetty at boot, I get null when calling System.getenv("var1") When I run a simple console application on the server under my user (suder user) I get the environment variable currently. What I need to do in order to make the environment variables in /etc/environment visible to the war when it