I wrote a simple TCP network library with epoll for linux. In one of my tests, I want to test the throughput of the library. I send 2000000 msgs of 500 bytes. The binded socket randomly returns zero on a recv after 800000 or more msgs have been received. Other times, all messages are received. What would caus…
Php.ini changes are not taken on Linux Bitnami Ubuntu
I am using a LAMP stack from Bitnami with Ubuntu. I am trying to increase post_max_size in file php.ini. I changed these values: Then reset with sudo /opt/bitnami/ctlscript.sh restart php-fpm (taken from the Bitnami documentation). No changes take effect. I have tried removing all the text from php.ini. I get…
Syntax error at or near {
I have an assigment where I have to count the number of words in each .c .cc and .h file.The problem is it keeps showing the syntax error at line 8 and 10 at or near { .This is not a finished script!It may have some other problems but I only needed help with the syntax error! Answer Inside an
Bash offer numberd results for selection to user
my script takes in a site name from the user. Its then allows the user to checkout, edit, and commit changes to the file, via the script. However, some sites have two to six files. So the script lists them as follows You have more than one Cambridge file. Please pick from the following: cambridge1 cambridge2 …
PHP fopen ‘x+’ doesn’t work on ubuntu
I created an application which has an caching script on an Windows/Wamp environment. This script’s caching function is only allowed to run once at the same time. To achieve this I used a ‘locking file’ with check to see if it exists. On windows this script continues to work fine. But now it …
How to compare a string with EOF?
I’ve created a program that acts like a unix-shell. Namely if type something like “./helloWorld” it will execute the program and then wait for additional input. If the input is EOF (Ctrl + D) then the program must terminate. What I’m struggling with is trying to compare the input witho…
Call a function from the console as an argument
I have a file1.py: Now I want to call file1.battery() from the linux console with python file1.py battery. But I get the error: Answer You can use eval for compiling string like code or use globals and locals: Also, the module can import itself:
Could not load type ‘System.Net.Security.SslStream’
I’ve this simple C# program: and I compile it with mono (mcs): when I execute, an error thrown: My Npgsql.dll version My compiler: Finally, my environment: Thank you Answer I have one question – do you have library Mono.Security.dll inside bin folder? If so, please delete it and try again.
how to replace [^u0009u000Au000Du0020-uD7FFuE000-uFFFDu10000-u10FFF]+ to “” in a file by sed or anything?
I find and replace some strange characters in xml file with text editor. with regular expression Now, I need to it in linux command line. I ask you how to use sed or anything that same find and replacement job in linux command line. Thank you in advance Answer You can try this : Before replacing, be sure you …
Howto debug when nginx gives 502 bad gateway?
On landing.example.com:10000 have I a webserver that works fine, which is a Docker container that exposes port 10000. Its IP is 172.17.0.2. What I would like is having a nginx reverse proxy on port 80, and send the visitor to different Docker containers depending on the URL they visit. When I do this, I get 5…