amatendash's Introduction
# how to use At first, run docker to use rselenium ``` $ docker run -d -p 4444:4444 selenium/standalone-chrome ``` Data scraping program crawler.R and crawler_loop.R is coded in R. To collect data automatically, run a script having loop with timer ``` $ nohup Rscript crawler_looop.R & ``` To run once, ``` $ Rscript crawler.R ``` **Notes ** crantab time is not used now. loop and timer should be used alternatively. To collect data automatically, cron will run the program. Schedule is asigned in /etc/crontab ``` $ crontab -e ``` ``` # m h dom mon dow command 0 0 * * * Rscript ~/Documents/shiny-apps/amaten/crawler.R ```
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