go-edge

go-edge

go-edge provides the command edge to show the edge of logs with conditional grep

Usage

$ edge [options] FILE

Options

-g   --grep  KEYWORD  grep condition
-c                    also show the total line count

Examples

Here is the 'error.log' file.

$ cat error.log
2023/02/27 08:43:00,not found
2023/02/27 08:43:01,not found
2023/02/27 08:43:02,not found
2023/02/27 08:43:03,no auth

Then you execute the edge command. Then shown the first line and last line.

$ edge error.log
1: 2023/02/27 08:43:00,not found
4: 2023/02/27 08:43:03,no auth

The number of top of line is line number of the file.

And you can use -c option to know total line number.

$ edge -c error.log
1: 2023/02/27 08:43:00,not found
4: 2023/02/27 08:43:03,no auth
total 4 lines

The above is pretty much the same as below command executions:

$ cat error.log | head -n1
$ cat error.log | tail -n1
$ cat error.log | wc -l

With --grep option, you can get filtered 1st line and last line.

$ edge --grep found error.log
1: 2023/02/27 08:43:00,not found
3: 2023/02/27 08:43:02,not found

With --grep and -c option:

$ edge -c --grep found error.log
1: 2023/02/27 08:43:00,not found
3: 2023/02/27 08:43:02,not found
total 4 lines

Installation

go install github.com/bayashi/go-edge/cmd/edge@latest

License

Apache License 2.0

Author

Dai Okabayashi: @bayashi