> @/etc/init.d$ grep -R -e '\[ ' -e 'test ' * | grep -e ' -o ' -e ' -a ' | wc -l
> 14
> @/etc/init.d$ grep -R -e '\[ ' -e 'test ' * | wc -l
> 567
> @/etc/init.d$

For those pedantic regex lawyers, here is more precision in measurements:

@/etc/init.d$ grep -R -e ' \[ [^]]*\ ]' -e ' test ' -e '^\[ ' -e '^test ' * | \
wc -l
452
@/etc/init.d$ grep -R -e ' \[ [^]]*\ ]' -e ' test ' -e '^\[ ' -e '^test ' * | \
grep -e ' -o ' -e ' -a ' | wc -l
12
[EMAIL PROTECTED]:/etc/init.d$

Difference is more than 37 times.
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