Software on a server consists of several processes that write errors to a single, text-based log file called “error_log.txt” – one per line. Each line of the file contains a date, time, 4-digit error code, a one-word process name, and the error message text. Spaces are placed between each part. Examples:
05/06/10 12:45:10 4242 PROCESSOR Code not found in auxiliary image
05/06/10 12:48:22 1356 HDSUBSYS Continuity check failed at interleave 33
In need to write a set of commands that will make a list of unique error codes generated by the “IOSYSGEN“ process.