index [+|-]n

Use the index subcommand to designate a buffer position at which to begin the display, as follows:

• index +n to designate a line number relative to the beginning of the buffer

• index -n to designate a line number relative to the end of the buffer

• index n to designate a line number relative to the beginning of the buffer (same as index +n)

The origin of counting is 1; that is, index +1 indicates the first line in the buffer, index -1 indicates the last. For example:

rsc> loghistory index -30

This command prints the last 30 lines and any additional lines that were appended to the buffer between the time that the command began execution and the time that it terminated.