1. In the linux environment, call execl: if((pid=fork())<0){ printf("fork error n"); }else if(pid==0){ *child* if(execl(" sbin ifconfig","ifconfig","eth0","hw",&qu...
how does postgres convert tables to CSV? in ubuntu virtual machines google found COPY ( SELECT name, category_name FROM products LEFT JOIN categories ON categories.id = products.category_id ) TO path to output.csv WITH csv; but using this ...
system: Ubuntu 16.4 python3.6 twisted-15.2.1 Scrapy 1.5.0 is also installed in the virtual environment prompt the following message when creating a Scrapy: (pyvirSpider) root@ubuntu: myScrapy-sharp scrapy startproject test Traceback (most recent...
install module: npm install mint-ui -S mains.js: import Mint from mint-ui ; import mint-ui lib style.css Vue.use(Mint); I want to use the toash component now using the toash component in xx.vue he will prompt that he cannot find if ...
give me a brief answer and describe my question. my purpose is to visit website A, but if I do not log in to website A directly, I will be redirected to website B. that is to say, I must go through the login operation of website B to access the target ...