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maybe(1) General Commands Manual maybe(1)


maybe - see what a command does before applying its changes


maybe <command> [<options>]


maybe runs the given command and intercepts any filesystems changes it attempts to make, indicating that they succeed without actually applying the changes. Once command has finished, maybe reports all the changes attempted, and if there were any such changes, offers to re-run command without filtering them.

maybe should never be used to check untrusted code since only a few system calls are blocked.


maybe was written by Philipp Emanuel Weidmann.

This manual page was written by Stephen Kitt <> for the Debian GNU/Linux system (but may be used by others).

February 8, 2016 maybe