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If there is an error on the
find command line, an error message
is normally issued. However, there are some usages that are
inadvisable but which
find should still accept. Under these
find may issue a warning message.
By default, warnings are enabled only if
find is being run
interactively (specifically, if the standard input is a terminal) and
the POSIXLY_CORRECT environment variable is not set. Warning messages
can be controlled explicitly by the use of options on the command
These options take effect at the point on the command line where they are specified. Therefore it's not useful to specify ‘-nowarn’ at the end of the command line. The warning messages affected by the above options are triggered by:
The default behaviour above is designed to work in that way so that existing shell scripts don't generate spurious errors, but people will be made aware of the problem.
Some warning messages are issued for less common or more serious problems, and consequently cannot be turned off: