Terminal
/ Log File
The Log File category of the Session Options dialog allows you to customize the logging options for the selected session A session is a set of options that are assigned to a connection to a remote machine. These settings and options are saved under a session name and allow the user to have different preferences for different hosts..
Log file name group
This section allows you to specify a default filename for your log file.
You can enter a path or filename, or you can use the Browse
button 
to open
the Save As dialog and select the path or
filename. You can also include any of the variables listed in the Substitution section below. These
variables will be expanded when SecureCRT writes to the log
file.
Options group
This section lets you specify log file behaviors.
Prompt for filename
Check this option to prompt the user for the session log filename when the log is started.
Start log upon connect
Check this option to start writing to the session log file whenever a connection A data path or circuit between two computers over a phone line, network cable, or other means. is made. By default, this option is not selected.
Overwrite file
If this option is selected and the session log file already exists, the current log file will be overwritten by the new session log file.
Append to file
If this option is selected and the session log file already exists, the new session log will be appended to the existing log file. If the log file does not already exist, a new file is created.
Raw log
Check this option to write every character received by SecureCRT, including terminal A device usually consisting of a keyboard, a display unit such as a cathode ray tube, and a serial port used for entering and sending data to a computer and displaying any data received from the computer. Terminals are usually connected to a computer with a serial line or some other type of connection. There are many terminal types including VT100, VT102, VT220, and others. escape sequences, to the session log file. By default, this option is off.
Start new log file at midnight
Check this option to have SecureCRT start a new log file each night at midnight. Using this feature can aid in automatic log rotation.
Custom log data group
This section lets you specify custom messages to be written to the log file. You can include any of the variables listed in the Substitution section below. These variables will be expanded when SecureCRT writes to the log file.
Upon connect
Entries in this box will be written to the log file when the session connects.
Upon disconnect
Entries in this box will be written to the log file when the session disconnects.
On each line
Entries in this box will be written to each line of the log file.
Log only custom data
If this option is selected, SecureCRT will log only the custom data from the three fields above. All normal log messages will be suppressed.
Substitutions group
In the dialog, this section lists some of the variables that SecureCRT can expand when writing to the log file. A complete list is shown below.
%H - hostname
%S - session name
%Y - four-digit year
%M - two-digit month
%D - two-digit day of the month
%P - port
%h - two-digit hour
%m - two-digit minute
%s - two-digit seconds
%t - three-digit milliseconds
%% - percent (%)
%envvar% - environment variable
Note: The environment variable substitution occurs first.