I use SecureCRT quite often to access Linux systems as well as network devices.

When going through one of the presentations on SecureCRT web page I found handy tip how to configure session logs to have it divided by date, time and session.

Screenshot below demonstrates settings for log file:

Basically parameters are set to:

• Log file name: %Y-%M-%D–%h-%m-%s.%t__%S(%H).txt
• Options / Start log upon connect: checked
• Custom log data / On each line: %h:%m:%s(%t):

These settings will create separate log file for each session every time connection will be established.

In addition to that each line will start with timestamp added by SecureCRT.