The software described in this documentation is either in Extended Support or Sustaining Support. See https://www.oracle.com/us/support/library/enterprise-linux-support-policies-069172.pdf for more information.
Oracle recommends that you upgrade the software described by this documentation as soon as possible.

9.2.6 Session Control Commands

The following commands control the crash session:

alias

Defines an alias for a command. With no argument, the command displays the current list of aliases.

exit, q, or quit

Ends the crash session.

extend

Loads or unloads the specified crash extension shared object libraries.

foreach

Execute a bt, files, net, task, set, sig, vm, or vtop command on multiple tasks.

gdb

Passes any arguments to the GNU Debugger for processing.

repeat

Repeats a command indefinitely until you type Ctrl-C. This command is only useful when you use crash to examine a live system.

set

Sets the context to a specified PID or task. With no argument, the command displays the current context.