Re: TEE bug?

[Eric Blake]

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According to Dean K. Gibson on 5/14/2008 2:00 PM:
| Version  5.2.1 (from CentOS 4.1):

Consider upgrading; 5.2.1 is several years old, and the latest stable
version is 6.11.

|
| When the output from "tee" is piped to "head" (or presumably any other
| program that does not read all of stdin), tee gives "broken pipe" and
| "write error" error messages.
|
| While that may be perhaps technically true, it was unexpected.

More than just tee is affected by this.  This is the behavior of any
POSIX-compliant application when started with SIGPIPE ignored and where a
write error occurs because the other end of the pipe closes without
reading all output.

|
| Of course piping stderr to /dev/null gets rid of the messages.  You
| might consider an option to suppress the messages in this case, while
| allowing other messages.

Such an option already exists, and it is outside the realm of coreutils.
You merely need to tell your shell to quit ignoring SIGPIPE:

trap - PIPE

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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