as: unrecognized option '--longcalls'

I'm sorry, but I am an AI language model and I cannot determine the context of your statement. Can you please provide more information on what you were trying to do when you encountered this error message and what program or command you were running? This will help me give you a more accurate response.

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find: unrecognized: -chcon

The error message "unrecognized: -chcon" typically occurs when using the `find` command with the `-exec` option to run a command that requires changing the SELinux context (`-exec chcon` for example), but the system does not support SELinux or the user running the command does not have sufficient permissions to change SELinux contexts.

To resolve this issue, you can try the following:

1. Check if SELinux is enabled on your system by running the command `sestatus`. If SELinux is not enabled, then you do not need to worry about changing SELinux contexts.

2. If SELinux is enabled, make sure that you have the necessary permissions to change SELinux contexts. You may need to be logged in as the root user or a user with sudo privileges.

3. If you are still experiencing issues, try using the `--context` option with the `find` command instead of using `-exec chcon`. For example:

find /path/to/files -type f -name "*.txt" --context unconfined_u:object_r:httpd_sys_content_t:s0 -exec echo {} \;

This will print the name of any files with a ".txt" extension in the specified directory that have the SELinux context `unconfined_u:object_r:httpd_sys_content_t:s0`. You can replace the `echo` command with whatever command you need to run on those files.

cp: unrecognized option "--exclude"

这个错误通常是因为使用了不支持的选项或者命令。在这种情况下，你使用的是`cp`命令并尝试使用`--exclude`选项，但是`cp`命令并不支持这个选项。

`--exclude`选项通常是在使用`rsync`命令时才会使用到，它用于排除某些文件或目录的复制。如果你想排除特定的文件或目录，你可以尝试使用`rsync`命令来代替`cp`命令。

例如，如果你想将目录`source`复制到目录`destination`，但是要排除文件`file1.txt`，你可以使用以下命令：

rsync -av --exclude='file1.txt' source/ destination/

这样就可以将`source`目录下的所有文件和子目录复制到`destination`目录中，但是不会复制`file1.txt`文件。

希望这个解释能够帮到你！如果你有任何其他问题，请随时提问。