install firefox on debian

sudo tar -jxvf firefox-xxxxxxx.tar.bz2 -C /opt/

create debian usb install stick, on a mac machine

sudo dd if=~/Desktop/debian-live-7.0.0-i386-gnome-desktop.iso of=/dev/rdisk1 bs=1m

python get longest string in list

mylist = ['1','22','333']
print max(mylist, key=len)

vim search non-greedy

Instead of .* use .\{-}.

php Turn on output buffering

ob_start();
 $buffer = ob_get_clean();

debian firefox java plugin install

download the library, extract them, then

ln -s jdk/jdk1.6.0_26/jre/lib/i386/libnpjp2.so  ~/.mozilla/plugins/

Migrate mysql users to another server

ERROR 1577 (HY000) at line 1: Cannot proceed because system tables used by Event Scheduler were found damaged at server start ERROR 1547 (HY000) at line 1: Column count of mysql.proc is wrong. Expected 20, found 16. The table is probably corrupted


solution:
sudo mysql_upgrade -uroot -p --force