groupby

Group lines base on a regular expression

``` groupby (lostutils) 0.1.5 Group lines based on a given regex.

USAGE: groupby [FLAGS] [OPTIONS]

FLAGS: --count-only
Only show the count of matches per group.

-h, --help          
        Prints help information

-u                  
        Remove duplicate lines in the same group

-V, --version       
        Prints version information

OPTIONS: -g
The group-id to group by. Can be an index or a group name.

ARGS:
The regex to group by. The match will use the entire expression, unless a group-id is provided.

```

Usage

// chat.txt Message from Alice: Hello! Message from Bob: Hi! Message from Alice: Did you try groupby? Message from Bob: Yes. It is really cool!

```bash $ cat chat.txt | groupby "Message from (\w+):" -g 1 NO-MATCH // chat.txt Alice Message from Alice: Hello! Message from Alice: Did you try groupby? Bob Message from Bob: Hi! Message from Bob: Yes. It is really cool!

bash $ cat chat.txt | groupby "Message from (\w+):" -g 1 --count-only 1 NO-MATCH 2 Alice 2 Bob ```