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Disable firewall logging to console

Edit /etc/init.d/klogd and set

KLOGD="-c 4"

mysqldump Options

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

other options


Export local webserver to public server

ssh -R *:8888:localhost:80

Show humanreadable date from timestamp

$> 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

Fedora yum Setup

Import GPG keys for installing via yum

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

UTF-8 Terminal on an latin1 system

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 string in various files

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)

linuxsnippets.txt · Last modified: 2012/08/15 16:21 by