(ddd.info)Customizing Sessions

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2.3.4 Customizing Sessions
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You can change the place where DDD saves its sessions by setting the
environment variable `DDD_SESSIONS' to the name of a directory.
Default is `~/.ddd/sessions/'.

   Where applicable, DDD supports a `gcore' command to obtain core
files of the running program.  You can enter its path via `Edit =>
Preferences => Helpers => Get Core File'.  Leave the value empty if you
have no `gcore' or similar command.

   This setting is tied to the following resource (Note: Customizing):

 -- Resource: getCoreCommand (class GetCoreCommand)
     A command to get a core dump of a running process (typically,
     `gcore') `@FILE@' is replaced by the base name of the file to
     create; `@PID@' is replaced by the process id.  The output must be
     written to `@FILE@.@PID@'.

     Leave the value empty if you have no `gcore' or similar command.