Two options here:

• Run the whole script with--debug=<number> --log. Thentar -cvzf mydebug.tgz /tmp/ssltester.<randomstring> <nameoflogfile>
• Run the section where the problem is (see--help):script -c "bash -vx testssl.sh optionfortherightsection>"

For <number> see man page.

1. YMMV

2a) For a full debug output

• (all-in-one output): runscript -a mydebug.script -c "SETX=true bash -x testssl.sh <CMDLINE>"
• (separate debugging file): or run "bash -x testssl.sh " and look for last file in /tmp/testssl.s-XXXX.log

2b) spot the section where the bug is

• edit the script and putafter the section anexit 0
• switch on debugging either by
  • editing the program and add before aset -x, run the section of the script
  • run the script withbash -x testssl.sh <<optionfortherightsection>>