Chapter 10: Data Normalization and Exploitation

1. (3)
   strftime(%F %T, 1232467200) would format the time and date stamp as 2009-01-20 16:00:00. 1232467200 is the Unix time code for this time and date, but conversions are not required for the 210-255 exam. Notice how this is the same for all four options.
   %F is the formatting option that's used for dates in the RFC 8601 format, and presents time in UTC, which is equivalent to the GMT (+00.00) time zone. Using the %c option presents the date in the format that's used in the local system. %T is used to present 24-hour time in seconds.
2. (2)
   The awk command can be used to read through a serial file line by line, separating fields. The default is to use whitespace between fields, but this can be changed, for example, to comma-separated values or other delimiters.
   The grep CLI command can be used to search through data using regular...