find: Error Messages From xargs
12.2 Error Messages From 'xargs'
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'environment is too large for exec'
This message means that you have so many environment variables set
(or such large values for them) that there is no room within the
system-imposed limits on program command line argument length to
invoke any program. This is an unlikely situation and is more
likely result of an attempt to test the limits of 'xargs', or break
it. Please try unsetting some environment variables, or exiting
the current shell. You can also use 'xargs --show-limits' to
understand the relevant sizes.
'argument list too long'
You are using the '-I' option and 'xargs' doesn't have enough space
to build a command line because it has read a really large item and
it doesn't fit. You may be able to work around this problem with
the '-s' option, but the default size is pretty large. This is a
rare situation and is more likely an attempt to test the limits of
'xargs', or break it. Otherwise, you will need to try to shorten
the problematic argument or not use 'xargs'.
'argument line too long'
You are using the '-L' or '-l' option and one of the input lines is
too long. You may be able to work around this problem with the
'-s' option, but the default size is pretty large. If you can
modify the your 'xargs' command not to use '-L' or '-l', that will
be more likely to result in success.
'cannot fork'
See the description of the similar message for 'find'.
'<program>: exited with status 255; aborting'
When a command run by 'xargs' exits with status 255, 'xargs' is
supposed to stop. If this is not what you intended, wrap the
program you are trying to invoke in a shell script which doesn't
return status 255.
'<program>: terminated by signal 99'
See the description of the similar message for 'find'.
'cannot set SIGUSR1 signal handler'
'xargs' is having trouble preparing for you to be able to send it
signals to increase or decrease the parallelism of its processing.
If you don't plan to send it those signals, this warning can be
ignored (though if you're a programmer, you may want to help us
figure out why 'xargs' is confused by your operating system).
'failed to redirect standard input of the child process'
'xargs' redirects the stdin stream of the command to be run to
either '/dev/null' or to '/dev/tty' for the '-o' option. See the
manual of the system call 'dup2(2)'.
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