/usr/share/fedmsg/extras/stress/launcher.sh is in python-fedmsg 0.9.3-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | #!/bin/bash
# Just an intermediary script to make invocation from xargs easier.
echo "SSHing to $1"
ssh -tt $1 "bash -c 'source ~/fedmsg/bin/activate; (echo 1;echo 2;echo 3;echo 4;echo 5;echo 6;echo 7) | xargs -rP8 -L1 ./mass-sub.py'"
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