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camelCase search word cause grep to error with 123?

From: Xah Lee
Subject: camelCase search word cause grep to error with 123?
Date: Mon, 16 Mar 2009 17:35:34 -0700 (PDT)
User-agent: G2/1.0

Recently, when i use grep-find in emacs, i get this error:
“Grep exited abnormally with code 123 at Mon Mar 16 17:22:46”.

Same error when using Meta+x grep.

it appears to me, that if the search word is camelCase, this error
happens, else no.

For example, here's the command given to grep-find:

find . -name "*txt" -print0 | xargs -0  grep -nH pestiLence

this problem happens too if i call it with shell-command, but does not
happen when i call in shell within emacs (M-shell).

Anyone know what's going on? This is reproducible when starting emacs
with -q. Duplicable with Carbon emacs and X11 emacs both based on

A websearch returns many results. Apparently this error string
happens... so far i'm not sure what causes it.


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