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setsid sh &
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ps aux | grep sh
root 434 0.0 0.0 4448 668 ? Ss Apr19 0:00 /bin/sh -c python /home/ren/mr_killer.py
root 472 0.0 0.0 65460 3292 ? Ss Apr19 0:01 /usr/sbin/sshd -D
root 22208 0.0 0.0 65460 3232 ? Ss 01:50 0:00 sshd: [accepted]
root 22562 0.0 0.0 65460 3232 ? Ss 01:50 0:00 sshd: [accepted]
root 30605 0.0 0.0 66804 3460 ? Ss 01:51 0:00 sshd: [accepted]
sshd 30632 0.0 0.0 66804 1356 ? S 01:51 0:00 sshd: [net]
www-data 31592 0.0 0.0 37276 5252 ? S 01:51 0:00 python /var/www/service/parent.py bash /var/www/service/usercode/237049723/source.sh
www-data 31619 0.0 0.0 21740 1516 ? S 01:51 0:00 bash /var/www/service/usercode/237049723/source.sh
www-data 31623 0.0 0.0 4448 660 ? S 01:51 0:00 /bin/sh -c ls -fR /tmp | wc -l
www-data 31625 0.0 0.0 14992 1064 ? S 01:51 0:00 grep sh
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for i in $(seq 1000); do setsid sh &; done
source_file.sh: line 1: syntax error near unexpected token `;'
source_file.sh: line 1: `for i in $(seq 1000); do setsid sh &; done'
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bash
echo 123
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echo $$
15674
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