Nginx – Makefile help target
I am trying to create a nice and dynamic help, but I am struggling to interpret the variable name in the project's .env file. I need these names to be interpreted by the .env. I will provide the closest result…
Debian – How to extract columns from CSV file, process and create a CSV file based on the extract and processing result?
The is a snipped from the source CSV file. %status,date,job,project,start,end,description % //,18.03.2021,sib,sib-dede,07:00,15:00,dede-mongo % //,11.06.2021,sib,sib-dede,07:00,15:00,dede-mongo % //,24.06.2021,sib,sib-dede,07:00,15:00,dede-mongo % ?,02.08.2021,sib,sib-accounting,14:35,16:35,business-plan % ?,13.10.2021,sb,sb-accounting,11:30,12:00,e-mail-pump I like to extract from the source CSV file the start time in column 5 and the end time in…
Ubuntu – Why iterator type of priority_queue is wrong with range constructor?
The code is as following. #include <iostream> #include <queue> #include <unordered_map> using namespace std; typedef unordered_map<int,int>::iterator myIt; class cmpHelper { public: bool operator()(myIt l, myIt r){return l->second > r->second;} }; int main(int argc, char* argv[]){ unordered_map<int,int> freq_cnt({{3,1},{2,4},{5,2}}); priority_queue<myIt,vector<myIt>, cmpHelper> h(freq_cnt.begin(),…
How to install Clang 11 on Debian
I am trying to compile a C++ project on a PC with "Debian GNU/Linux 10". The project requires clang, so I installed it with: sudo apt-get install clang But I run into the following error: Clang version must be at…
Awk 4.1.4 Error when processing large file – CentOS
I am using Awk 4.1.4 on Centos 7.6 (x86_64) with 250 GB RAM to transform a row-wide csv file into a column-wide csv based on the last column (Sample_Key). Here is an example small row-wide csv Probe_Key,Ind_Beta,Sample_Key 1,0.6277,7417 2,0.9431,7417 3,0.9633,7417…