This is weird.
Code:
su - zimbra
/opt/zimbra/bin/zmprov gacf | egrep '^zimbraLogRawLifetime'
/opt/zimbra/bin/zmprov gacf | egrep '^zimbraLogRawLifetime' | sed -e 's/zimbraLogRawLifetime: //'
/opt/zimbra/bin/zmprov gacf | egrep '^zimbraLogSummaryLifetime'
/opt/zimbra/bin/zmprov gacf | egrep '^zimbraLogSummaryLifetime' | sed -e 's/zimbraLogSummaryLifetime: //'
/opt/zimbra/bin/zmprov gacf | egrep '^zimbraLogSummaryLifetime' | sed -e 's/zimbraLogSummaryLifetime: //'
which one fails?