gsec -user sysdba -password masterkey
modify SYSDBA -pw gtlions
add gtlions -pw gtlions
quit

isql
create database 'gtlions.fdb' user 'SYSDBA' password 'gtlions' default character set UTF8;
create database 'gtlions1.fdb' user 'gtlions' password 'G1!tlion' default character set GBK;
exit;

isql gtlions.fdb -user sysdba -password gtlions
isql gtlions.fdb -u gtlions -p 'G1!tlion'
isql gtlions1.fdb -u gtlions -p gtlions

sudo launchctl unload /Library/LaunchDaemons/org.firebird.gds.plist
sudo launchctl unload /System/Library/LaunchAgents/com.apple.bird.plist

vi script_for_remove_firebird.sh

#!/bin/sh
echo "Clean Services"
echo "Clean User"
dscl localhost -delete /Local/Default/Users/firebird
echo "Clean Group"
dscl localhost -delete /Local/Default/Groups/firebird
if [ -f "/Library/StartupItems/Firebird" ]; then
echo "Remove SuperServer StartupItem"
rm -fr /Library/StartupItems/Firebird
fi
if [ -f "/Library/LaunchDaemons/org.firebird.gds.plist" ]; then
echo "Remove Launchd"
launchctl unload /Library/LaunchDaemons/org.firebird.gds.plist
rm /Library/LaunchDaemons/org.firebird.gds.plist
fi
echo "Remove Framework"
rm -fr /Library/Frameworks/Firebird.framework
echo "Remove Receipt"
rm -fr /Library/Receipts/Firebird*.pkg

sudo launchctl unload /Library/LaunchDaemons/org.firebird.gds.plist