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brings you in to another shell which is treated as batch but is interactive.
Misc info about resources at NERSC/PDSF
https://newweb.nersc.gov/users/computational-systems/pdsf/using-the-sge-batch-system/i-o-resources/
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- Reboot VM
From inside: shutdown -r now
From outside: euca-reboot-instances i-446F07EE