resursion.sh

#!/bin/bash
# safety settings
set -u
set -e
set -o pipefail

echo running a new VM…
cat recursion.sh | qvm-run '$dispvm' 'cat > recursion.sh; chmod +x recursion.sh; ./recursion.sh'
echo $?

zz_output.log

% ./recursion.sh | nl
     1	running a new VM…
     2	running a new VM…
     3	running a new VM…
     4	running a new VM…
     5	running a new VM…
     6	running a new VM…
     7	running a new VM…
     8	running a new VM…
     9	running a new VM…
    10	running a new VM…
    11	running a new VM…
    12	running a new VM…
    13	0
    14	0
    15	0
    16	0
    17	0
    18	0
    19	0
    20	0
    21	0
    22	0
    23	0
    24	0