Issue
I understand that grep -c string can be used to count the occurrences of a given string. What I would like to do is count the number of unique occurrences when only part of the string is known or remains constant.
For Example, if I had a file (in this case a log) with several lines containing a constant string and a repeating variable like so:
string=value1
string=value1
string=value1
string=value2
string=value3
string=value2
Than I would like to be able to identify the number of each unique set with an output similar to the following: (ideally with a single grep/awk string)
value1 = 3 occurrences
value2 = 2 occurrences
value3 = 1 occurrences
Does anyone have a solution using grep or awk that might work? Thanks in advance!
Solution
This worked perfectly... Thanks to everyone for your comments!
grep -oP "wwn=[^,]*" path/to/file | sort | uniq -c
Answered By - Simpleton
