(
   ^
[ headless ]:1: Unexpected EOF while parsing command
  zzZZ
  ^~~~
[ headless ]:1: Command 'zzZZ' not found (OILS-ERR-100)
  declare -X
          ^~
[ headless ]:1: 'declare' doesn't accept flag -X
  break
  ^~~~~
[ headless ]:1: warning: Invalid control flow at top level
  continue
  ^~~~~~~~
[ headless ]:1: warning: Invalid control flow at top level

frontend
install
libc.so
line_input.so
metrics
mycpp
oils-version.txt
opy
osh
pea
pgen2
posix_.so
prebuilt
pyext
pylib
shell.nix
soil
spec
stdlib
test
testdata
tools
trees
uninstall
vendor
web
yaks
ysh
x: mystdin
PS1=osh-0.28$
0 /home/uke/oil
/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 2 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 3 -> /home/uke/oil/_tmp/soil/INDEX.tsv
lrwx------ 1 uke uke 64 Mar 21 19:09 4 -> socket:[23588]
[headless_demo.py] stdout_fd = 6
child/server (PID 6373)
total 0
lrwx------ 1 uke uke 64 Mar 21 19:09 0 -> socket:[23589]
lrwx------ 1 uke uke 64 Mar 21 19:09 1 -> socket:[23589]
l-wx------ 1 uke uke 64 Mar 21 19:09 2 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 3 -> /home/uke/oil/_tmp/soil/INDEX.tsv
[FANOS] Connect stdin and stdout to one end of socketpair() and send control messages.  osh writes debug messages (like this one) to stderr.
[FANOS] received blob 'GETPID'
[headless_demo.py] reply b'OK 6373'
[FANOS] received blob 'EVAL echo hi'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL echo !!'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL echo one\necho two\necho three\n'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL echo 1;\necho 2;\necho 3\n'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL ( \necho subshell\n)\n'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL ls --color=auto'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL read x'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL echo "x: $x"'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL ('
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL zzZZ'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL declare -X'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL echo PS1=${PS1@P}'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL echo $? $PWD'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL break'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL continue'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL return'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply b'OK '
[FANOS] received blob 'EVAL exit'
[FANOS] received descriptor 7
[FANOS] received descriptor 8
[FANOS] received descriptor 9
[headless_demo.py] reply None

parent/client BEFORE (PID 6382)
total 0
lr-x------ 1 uke uke 64 Mar 21 19:09 0 -> /dev/null
l-wx------ 1 uke uke 64 Mar 21 19:09 1 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 2 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 3 -> /home/uke/oil/_tmp/soil/INDEX.tsv
lrwx------ 1 uke uke 64 Mar 21 19:09 4 -> socket:[22242]
lrwx------ 1 uke uke 64 Mar 21 19:09 5 -> socket:[22243]
parent/client AFTER (PID 6382)
total 0
lr-x------ 1 uke uke 64 Mar 21 19:09 0 -> /dev/null
l-wx------ 1 uke uke 64 Mar 21 19:09 1 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 2 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 3 -> /home/uke/oil/_tmp/soil/INDEX.tsv
lrwx------ 1 uke uke 64 Mar 21 19:09 4 -> socket:[22242]
[headless_demo.py] stdout_fd = 6
child/server (PID 6385)
total 0
lrwx------ 1 uke uke 64 Mar 21 19:09 0 -> socket:[22243]
lrwx------ 1 uke uke 64 Mar 21 19:09 1 -> socket:[22243]
l-wx------ 1 uke uke 64 Mar 21 19:09 2 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 3 -> /home/uke/oil/_tmp/soil/INDEX.tsv
[FANOS] Connect stdin and stdout to one end of socketpair() and send control messages.  osh writes debug messages (like this one) to stderr.
[FANOS] protocol error: Expected netstring length
[headless_demo.py] reply b'ERROR Expected netstring length'
status=1
parent/client BEFORE (PID 6392)
total 0
lr-x------ 1 uke uke 64 Mar 21 19:09 0 -> /dev/null
l-wx------ 1 uke uke 64 Mar 21 19:09 1 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 2 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 3 -> /home/uke/oil/_tmp/soil/INDEX.tsv
lrwx------ 1 uke uke 64 Mar 21 19:09 4 -> socket:[23619]
lrwx------ 1 uke uke 64 Mar 21 19:09 5 -> socket:[23620]
parent/client AFTER (PID 6392)
total 0
lr-x------ 1 uke uke 64 Mar 21 19:09 0 -> /dev/null
l-wx------ 1 uke uke 64 Mar 21 19:09 1 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 2 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 3 -> /home/uke/oil/_tmp/soil/INDEX.tsv
lrwx------ 1 uke uke 64 Mar 21 19:09 4 -> socket:[23619]
[headless_demo.py] stdout_fd = 6
child/server (PID 6395)
total 0
lrwx------ 1 uke uke 64 Mar 21 19:09 0 -> socket:[23620]
lrwx------ 1 uke uke 64 Mar 21 19:09 1 -> socket:[23620]
l-wx------ 1 uke uke 64 Mar 21 19:09 2 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 3 -> /home/uke/oil/_tmp/soil/INDEX.tsv
[FANOS] Connect stdin and stdout to one end of socketpair() and send control messages.  osh writes debug messages (like this one) to stderr.
[FANOS] received blob 'foo'
[FANOS] Invalid command 'foo'
[headless_demo.py] reply b"ERROR Invalid command 'foo'"
status=1
parent/client BEFORE (PID 6402)
total 0
lr-x------ 1 uke uke 64 Mar 21 19:09 0 -> /dev/null
l-wx------ 1 uke uke 64 Mar 21 19:09 1 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 2 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 3 -> /home/uke/oil/_tmp/soil/INDEX.tsv
lrwx------ 1 uke uke 64 Mar 21 19:09 4 -> socket:[21222]
lrwx------ 1 uke uke 64 Mar 21 19:09 5 -> socket:[21223]
parent/client AFTER (PID 6402)
total 0
lr-x------ 1 uke uke 64 Mar 21 19:09 0 -> /dev/null
l-wx------ 1 uke uke 64 Mar 21 19:09 1 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 2 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 3 -> /home/uke/oil/_tmp/soil/INDEX.tsv
lrwx------ 1 uke uke 64 Mar 21 19:09 4 -> socket:[21222]
[headless_demo.py] stdout_fd = 6
child/server (PID 6405)
total 0
lrwx------ 1 uke uke 64 Mar 21 19:09 0 -> socket:[21223]
lrwx------ 1 uke uke 64 Mar 21 19:09 1 -> socket:[21223]
l-wx------ 1 uke uke 64 Mar 21 19:09 2 -> /home/uke/oil/_tmp/soil/logs/headless.txt
l-wx------ 1 uke uke 64 Mar 21 19:09 3 -> /home/uke/oil/_tmp/soil/INDEX.tsv
[FANOS] Connect stdin and stdout to one end of socketpair() and send control messages.  osh writes debug messages (like this one) to stderr.
[FANOS] received blob 'ECMD'
[FANOS] Invalid command 'ECMD'
[headless_demo.py] reply b"ERROR Invalid command 'ECMD'"
status=1