Edit /etc/init.d/klogd and set

KLOGD="-c 4"

#> mysqldump -u user -p --complete-insert --add-drop-table --databases db1 db2

other options

--no-data
--no-create-info
--no-create-db

ssh andi@gaz.splitbrain.org -R *:8888:localhost:80

$> perl -e 'print scalar(localtime(1098189697))."\n";'

Sometimes you need some swap space. Here is how to add some to a running system:

# dd if=/dev/zero of=/extraswap bs=1M count=512
# mkswap /extraswap
# swapon /extraswap

Import GPG keys for installing via yum

rpm --import /usr/share/rhn/RPM-GPG-KEY-fedora

Sometimes you need a terminal which can display UTF-8 but your system still uses latin1. Here is what I did:

Install a unicode aware teminal emulator:

#> apt-get install rxvt-unicode

Make sure you have a UTF-8 locale available eg. en_US.utf-8 (check with locale -a), use dpkg –reconfigure locales to build one if needed.

Add this to your ~/.bashrc

  alias uterm='LANG=en_US.utf8 urxvt'

Now run uterm whenever you need the UTF-8 terminal.

find . | xargs grep 'string' 

Or if you don't need the flexibility of find:

grep -R "string" *

(-R for recursive; the star as a file matching pattern)