sumologic cheatsheet

sumologic

# SumoLogic CheatSheet

# Algorithms

A. Luhn - Luhn’s algorithm to check message logs for strings of numbers that may be credit card numbers and then validates them. It takes a string as an input, strips out all characters that are not numerals, and checks if the resulting string is a valid credit card number, returning true or false accordingly

  1. Syntax
    - luhn(<field>) [as <field>]
    - luhn("<input string>") [as <field>]
    
  2. Example
  `| parse regex "(?<maybecc>\d{4}-\d{4}-\d{4}-\d{4})" nodrop`
  `| parse regex "(?<maybecc>\d{4}\s\d{4}\s\d{4}\s\d{4})" nodrop`
  `| parse regex "(?<maybecc>\d{16})" nodrop`
  `| if (luhn(maybecc), true, false) as valid`
  
B. transaction

# Graphs

A. transpose

  1. Syntax
    - transpose row [<field_1>] column [<field_n>]