Reusing output from last command in Bash

Question

Is the output of a Bash command stored in any register? E.g. something similar to $? capturing the output instead of the exit status.

I could assign the

Answer 1

I have an idea that I don't have time to try to implement immediately.

But what if you do something like the following:

$ MY_HISTORY_FILE = `get_temp_filename`
$ MY_HISTORY_FILE=$MY_HISTORY_FILE bash -i 2>&1 | tee $MY_HISTORY_FILE
$ some_command
$ cat $MY_HISTORY_FILE
$ # ^You'll want to filter that down in practice!

There might be issues with IO buffering. Also the file might get too huge. One would have to come up with a solution to these problems.