Strange behavior piping output of /bin/ps ...

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Frobitz66 Author

Level 1

0 points

Strange behavior piping output of /bin/ps ...

Has anyone else run across a dyld warning when piping output from /bin/ps to ?

$ ps -ef | grep awacsd

dyld: DYLD_ environment variables being ignored because main executable (/bin/ps) is setuid or setgid

0 68 1 0 3:15PM ?? 0:00.54 /usr/sbin/awacsd

502 1404 689 0 5:28PM ttys000 0:00.00 grep awacsd

Although it's easy enough to work around, some of my more quick & dirty utility scripts are going to barf on this unexpected warning. I'm betting that I'm not the only one running into this.

MacBook Air, OS X Mountain Lion

Posted on Jul 27, 2012 4:34 PM

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Answer 1

Linc Davis

Level 10

209,547 points

Jul 27, 2012 6:17 PM in response to Frobitz66

Did you intentionally set any DYLD environment variables? None is set by default.

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Answer 2

Frobitz66 Author

Level 1

0 points

Jul 30, 2012 7:16 AM in response to Linc Davis

Yes I did. Turns out others have noticed this behavior too.

There's a thread on github that links to a ticket in openradar.appspot. Turns out there are currently two options to work-around.

1) Remove the offending DYLD_xxx entries in your .bash_profile (or other similar) config file.

2) Do step 1 and create soft-links in /usr/lib pointing back to the libraries you need.

Did both and now everything's happy again. :-)

Hope my experiences help others !

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Answer 3

Phil V

Level 1

8 points

Aug 7, 2012 4:26 PM in response to Frobitz66

Agree with Frobitz66, I'm using tcsh and needed to do the following in order to remove the warning text from ps, sudo and a few others.

unsetenv DYLD_LIBRARY_PATH

unsetenv LD_LIBRARY_PATH

looked at broken tools then symbolic linked libraries. e.g.

sudo ln -s /usr/local/oracle/instantclient_10_2/libclntsh.dylib.10.1 /usr/lib/libclntsh.dylib.10.1

(remember ln is source then dest - I always have to look that up 🙂 )

Bit of a pain - what is the motivation behind apple adding this warning text ?

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