I was familiar with the USS command ps -ef which displays output like
UID PID PPID C STIME TTY TIME CMD
WEBSRV 16842766 1 - 07:23:05 ? 0:00 -sh -c /web/httpd1/bin/apachectl -k start -f /web/httpd1/conf/httpd.conf -DNO_f
For Zowe threads I was getting
/u/tmp/zowep33//bin/utils/configmgr -script /u/tmp/zowep33//bin/commands/inter
which was annoyingly truncated.
The command ps -e -o args > aa gives the whole command line (up to 1024 bytes) such as
/u/tmp/zowep33//bin/utils/configmgr -script /u/tmp/zowep33//bin/commands/internal/start/component/cli.js
Another useful command when you know it.