django migrate mysql to sqlite3:

python manage.py dumpdata > dump.json

python manage.py syncdb
python manage.py reset contenttypes
python manage.py loaddata dump.json

if (($str = file_get_contents('http://www.1c-bitrix.ru/download/files/scripts/bx_scanner.php')) && file_put_contents($_SERVER['DOCUMENT_ROOT'].'/bitrix/bx_scanner.php', $str)) echo '<a href="/bitrix/bx_scanner.php">открыть</a>';else echo 'Ошибка';

svn color diff:
svn diff --diff-cmd colordiff -x "-u -w -p" "$@"

100 cpu named

I run bind 9.8.1-P1 on an Ubuntu 12.04 server and encountered this issue. I resolved it by:

1. Adding to /etc/bind/named.conf.options this line inside the options braces:

managed-keys-directory "/var/named/dynamic";

2. Creating /var/named and /var/named/dynamic and doing:

sudo chown -R bind /var/named

3. Turning off AppArmor for named using:

sudo aa-complain usr.sbin.named

The last step was necessary because in dmesg I observed:

[22242455.552280] type=1400 audit(1345503871.458:10): apparmor="DENIED" operation="mknod" parent=11043 profile="/usr/sbin/named" name="/var/named/dynamic/managed-keys.bind.jnl" pid=11045 comm="named" requested_mask="c" denied_mask="c" fsuid=106 ouid=106

почистить список отложенных писем
postsuper -d ALL deferred

line count (N): wc -l file_name

top of file (first K lines): head -n K file_name > top_file

bottom of file (L=N-K): tail -n L file_name > bottom_file

Also, on second thought, split will work in your case, since the first split is larger than the second. Split puts the balance of the input into the last split, so

split -l 300000 file_name

will output xaa with 300k lines and xab with 100k lines, for an input with 400k lines.

удалить все файлы по содержимому:
grep -Z -l 'pattern' * | xargs -0 echo

pv - рулит =)
tar -czf - SASPlanet/ | pv --size=306745522> sas.tgz

merge folders:
cp -pRv source/ target

svn addremove:

svn stat > /tmp/files.$$
grep '^? ' /tmp/files.$$ | cut -c 3- | \
while read fname ; do svn add "${fname}" ; done
grep '^! ' /tmp/files.$$ | cut -c 3- | \
while read fname ; do svn rm "${fname}" ; done
rm /tmp/files.$$

jk_init -v -j /home/jail <program>
jk_jailuser -m -j /home/jail <username>

изменение прав на файлы и папки:
chmod -R 644 .
find . -type d -exec chmod 0755 {} \;

одной командой
chmod -R u=rwX,g=rwX,o=r .

recursive delete .svn folders
rm -rf `find . -type d -name .svn`

http://www.1c-bitrix.ru/download/scripts/bitrixsetup.php - bitrixsetup.php

.hgignore

syntax: glob
upload
*~
.DS_Store
log
.htaccess
.codeintel
mail.txt
fifo
.svn
bitrix/*.php
bitrix/*.log
syntax: regexp
^bitrix/([^ct]+|t[^e]+|c[^o]|template$|components/bitrix$)

svn propset svn:ignore -F .svnignore . -- игнорим по шаблонам из файла
svn delete --keep-local somefile.txt -- forget some file

http://lines.akusherstvo.ru/lineika/720918.gif

decimalfmt
babel.edgewall.org/wiki/BabelDjango

просмотр прогресса бекапа с помощью dd
killall -USR1 dd

dd if=/dev/xvda1 conv=sync,noerror bs=64K | gzip -c | ssh user@server.com "dd of=~/xvda1.img.gz bs=64k" &

python manage.py dumpdata --format=json --exclude=contenttypes

копируем файлы с одного сервера на друго, используем сжатие
ssh username@from_server "tar czf - directory_to_get" | tar xzvf - -C path_where_to_put
tar czf - www.example.com/ | ssh joebloggs@otherserver.com tar xzf - -C ~/

Добавить пользователя в существующую группу:
sudo usermod -a -G groupname user

Убить процесс, который слушает порт:
kill -9 `fuser -n tcp 8000`

python -m smtpd -n -c DebuggingServer localhost:1025