Как рекурсивно поменять права только каталогам или только файлам

#вариант 1

cd /home/some_dir

chmod -R 644 *

find . -type d -exec chmod 0755 {} ';'

#вариант 2

#Эта команда рекурсивно пройдется по текущему (точка ".") каталогу и всем его подкаталогам и изменит права на 755 только у каталогов (-type d)

find . -type d -exec chmod 755 {} \;

#Похожим образом действуем и с файлами:

find . -type f -exec chmod 644 {} \;

#если необходимо применить действия только к определенным файлам, подходящим по маске, то действуем так:

find . -type f -name '*.htm*' -exec chmod 644 {} \;

#а если нужно применить команду только к файлам или каталогам определенного владельца, то -

fiind . -type d -user fileowner -exec chmod 0755 {} \;

window buttons in ubuntu

a@ubuntu11:~$ gconf-editor

select apps/metacity/general
open button_layout

change it

bash howto's

first line:

#!/bin/bash

#input parameters count:

$#

#script parameters:

$0 - self name, $1 ... $9 - input params

#check that file exist, the spaces near "[" and "]" are required :

if [ -e "streamcount.info" ]

then

echo 'file exist info'

fi

#get file extension:

SHORTFILENAME=$(basename $FULLFILENAME)

DEST_EXT=${SHORTFILENAME##*.}

#get temporary file name:

TFILE="/tmp/streaminfo.$RANDOM.$$.tmp"

#working directory:

$PWD

#redirect error stream to console and filter strings that contain word "Stream":

ffmpeg -i "$SRC" 2>&1 | grep "Stream"

#count strings with grep -c and put it into variable:

a=$( cat < $TFILE | grep -c "Audio:" )

#save command result as array with ( $( ) ):

s=( $( cat < $TFILE | grep "Audio:" | cut -f 2 -d "#" | cut -f 1 -d "(" ) )

#print array contents:

echo "stream numbers: ${s[@]:0}"

#use "for" construction:

for i in `seq 2 $a`;

do

index=$( echo "$i-1" | bc )

v="${s[index]}"

echo "$i. $v"

done

#extract float value:

x=$( echo "qwerty: 123.123123 !" | sed "s/.*[^0-9]\([0-9]\.[0-9]*\).*/\1/g" )

#float point operations:

echo "(256 / $x) / 10" | bc

for float result:

bc -l

# Checks for root privileges

if [ "$(whoami)" != 'root' ]

then

echo "You need to be root to execute uphosts. Exiting!"

exit 1

fi

# Checks required packages

ABORT=0

builtin type -P wget &>/dev/null || { echo -n "wget is missing."; ABORT=1; }

builtin type -P unzip &>/dev/null || { echo -n "unzip is missing."; ABORT=1; }

builtin type -P fromdos &>/dev/null || { echo -n "fromdos(tofrodos) is missing."; ABORT=1; }

builtin type -P grep &>/dev/null || { echo -n "grep is missing."; ABORT=1; }

if [ $ABORT != 0 ]

then

echo " Exiting!"

exit 2

fi

startkde fail

After some compilation with slackware 13.37 kde start failed with message "Could not start ksmserver. Check your installation.".

Fix (link):
In /usr/bin/startkde, change the line similar to
LD_BIND_NOW=true /usr/lib/kde4/libexec/start_kdeinit_wrapper +kcminit_startup
by removing the LD_BIND_NOW=true clause, leaving just
/usr/lib/kde4/libexec/start_kdeinit_wrapper +kcminit_startup

How to fix startx failure for Slackware 13.37

/etc/X11/xorg.conf

Add (link):

Section "Extensions"
Option "Composite" "Disable"
EndSection

script for repository.slacky.eu download

#!/bin/sh
date +"%F %X %Z" >> .update
rm ./FILELIST.TXT
wget http://repository.slacky.eu/slackware-13.1/FILELIST.TXT
cat FILELIST.TXT | cut -d '.' -f2-20 -s | sed '/^$/d'| sed 's/^/slackware-13.1/' >./links.txt
wget --base="http://repository.slacky.eu/" -x --input-file=./links.txt -P pub -T 120 -t 3 -nc

Parse OpenStreetMap data

Task:

Parse http://planet.openstreetmap.org/planet-110112.osm.bz2 and put data into DB

Technologies:

C#, SevenZipSharp, XML, XSD

Design:

Create data types with xsd.exe

Read data with SevenZipExtractor to WindowedStream (SharpDevelop ring buffer)

Mix DOM and SAX xml processing:

• Read elements with XmlReader
• Parse them with XmlSerializer
• Put result in DB with BlToolkit