How to extract data from html table in shell script?

Answer 1

You can parse the file using Ex editor (part of Vim) by removing HTML tags, e.g.:

$ ex -s +'%s/<[^>]\+>/ /g' +'v/0/d' +'wq! /dev/stdout' table.html 
  SAVE_DOCUMENT  OK  0.406 s  
  GET_DOCUMENT  OK  0.332 s  
  DVK_SEND  OK  0.001 s  
  DVK_RECEIVE  OK  0.001 s  
  GET_USER_INFO  OK  0.143 s  
  NOTIFICATIONS  OK  0.001 s  
  ERROR_LOG  OK  0.001 s  
  SUMMARY_STATUS  OK  0.888 s 

Here is shorter version by printing the whole file without HTML tags:

$ ex +'%s/<[^>]\+>/ /g|%p' -scq! table.html

Explanation:

• %s/<[^>]\+>/ /g - Substitute all HTML tags into empty space.
• v/0/d - Deletes all lines without 0.
• wq! /dev/stdout - Quits editor and writes the buffer to the standard output.