Histy

Histy is a command line tool for generating histogram plots from timestamped logs. Timestamps must be in ISO format. Histy is useful for quick visual analysis of log frequencies from the command line

Installation (Requires Python 3.6+ and pip)

pip install histy

Parameters:

--bucket_time_s or -b : the duration of each histogram bucket in seconds

Sample usage:

cat server.log | histy -b 60

docker logs my-app --since "2020-01-06 12:37:30" --until "2020-01-06 12:38:30" | histy -b 10

Output:

Histogram:
2020-01-15T03:13:01  :  ######### 63
2020-01-15T03:13:11  :  ###### 41
2020-01-15T03:13:21  :  #### 28
2020-01-15T03:13:31  :  ##### 34
2020-01-15T03:13:41  :  ############# 88
2020-01-15T03:13:51  :  ######### 61
2020-01-15T03:14:01  :  ########################## 181
2020-01-15T03:14:11  :  ###################################################################### 470
2020-01-15T03:14:21  :  #### 31
2020-01-15T03:14:31  :  ######## 54
2020-01-15T03:14:41  :  ####### 48
2020-01-15T03:14:51  :   5