Get directory size in linux

To get directory size use next command

$ du directory

there is option "-h" to be human readable

$ du -h directory

source : http://www.codecoffee.com/tipsforlinux/articles/22.html

How to run script or any command and logout and script still runnig

Our problem today is:

you have a remote server linux and you need to run command to restore database or run script which will take about 1 hour or more. you need to close your session and command still running because if you logout your command will stop but we have a solution today

to run the script and still running  after logout by

nohup your_commadn &

don't forget  &   because it put your command in background

source : http://www.cyberciti.biz/tips/nohup-execute-commands-after-you-exit-from-a-shell-prompt.html

enjoy your time
  ;)

Idea and reason of this blog

Hi all,
    How are you ? I hope you fine.Well about this blog. There are many problem facing me every day in programming and linux and I search on the internet to find how to solve my problem.So I want to share my problems and solving of this problem here for me and for every one in the world. I hope to be useful for every one.


BYE

Show certian line in document using command

If you have a large document and you want to see  only one line in documet and you know the line number
you can use this command

sed -n "linenumber p" file.txt

source :
http://www.linuxquestions.org/questions/linux-newbie-8/display-line-number-n-from-a-file-273780/

thanks