fengcool.com

untar all files in a directory

rick — Wed, 25 Jan 2012 19:09:40 +0000

for i in *.tar.gz; do echo extracting $i; tar xvzf $i ;

VirtualBox Fedora 13 install guest additions

Nelson — Fri, 22 Oct 2010 13:57:56 +0000

Install packages needed

yum -y install kernel-devel kernel-headers dkms gcc gcc-c++
in VirtualBox devices, select install guest additions
sh VBoxLinuxAdditions.run

VirtualBox Fedora 13 guest use shared folder

Nelson — Fri, 22 Oct 2010 13:54:32 +0000

Fedora 13 as guest OS on a Windows 7 host

Add a shared folder in virtualbox’s devices settings.
create a folder “Shared” in fedora
su –c “mount.vboxsf Shared ~/Shared -o rw,exec,uid=1000,gid=1000,dev”

Create multiple volumn zip backup with MD5 check

Nelson — Fri, 22 Oct 2010 13:48:58 +0000

Download and install p7zip:
http://p7zip.sourceforge.net/

Then use 7z
Code:
7z a -v50m test.zip your-big-file-paths
this makes 50 MB volumes called
Code:

test.zip.001 test.zip.002 test.zip.003 test.zip.004

To extract them just run
Code:

7z x test.zip.001

make md5
# md5sum test.zip.* > MD5SUM # cat MD5SUM cb16175f4acad02f977f74d5c142879b test.zip.001 33c745ca49ab6e63b727658ec148cf67 test.zip.002 14e6952b632fbb7f4c0731067afdb46c test.zip.003 ....
check md5
# md5sum --check MD5SUM

SVN make a sub folder to a seperate new repository

Nelson — Fri, 22 Oct 2010 13:41:21 +0000

svnadmin dump /svn/old_repos > ./repository.dump svndumpfilter include path/to/docs --drop-empty-revs --renumber-revs --preserve-revprops < ./repository.dump > ./docs_only.dump svnadmin load /svn/new_repos < ./docs_only.dump

Open and edit files from remote server

rick — Tue, 19 Oct 2010 14:07:42 +0000

In my workplace, every developer needs to work on own directory in a shared dev server.

Here is the command I ran to open my directory and edit my files remotely.

1	sshfs username@192.168.0.6:/remote/directory/path /mount/to/your/local/directory/path

* 192.168.0.6 is IP of remote server.

After you ran this, access to /mount/to/your/local/directory/path directory is same as access to remote directory.

Have fun.

Remove svn directories and files

rick — Tue, 19 Oct 2010 13:57:23 +0000

Deleting all SVN files and directories is a headache if your project contains lots of directories.

Here is a easy way to delete them with one command.

1	find /path/to/your/directory -type d -name .svn -exec rm -rf '{}' +

PHP file_get_contents connection timeout

rick — Tue, 20 Apr 2010 13:30:00 +0000

 
$context = stream_context_create(array(
    'http' => array(
        'timeout' => 60   //timeout after 60 seconds
        )
    )
); 
 
$file_content = file_get_contents($source_url,0,$ctx);

for more stream context options, please visit php.net

PHP is holiday class

rick — Wed, 20 Jan 2010 04:37:01 +0000

Test out is it a holiday for any given date.

This class currently support United States and Canada’s holidays.

Here is
United States holidays information.
Canadian Holidays information.

This PHP class supports different provinces have its own provincial holidays. For example, December 26th is statutory holiday for Ontario and New Brunswick in Canada.

Usage:


include_once("IsHoliday.php");
 
$h = new Holiday('US');
if($h->is_holiday('2010-07-04')) 
        echo "yes, 2010-07-04 is holiday in US 
";
else	
        echo "no 
";
 
 
//Using Canadian province code for specific province
$h = new Holiday('Canada','ON');
if($h->is_holiday('2010-12-26')) 
        echo "yes, 2010-12-26 is holiday in Canada 
";
else	
        echo "no 
";
?>

Download source code here

cp file always getting overwrite prompt?

rick — Thu, 26 Nov 2009 05:32:09 +0000

wondering why always getting overwrite prompt when use “cp” command with “-f” option

try this,

1. login as root

1	vi /root/.bashrc

2. comment out this line

1	#alias cp='cp -i'

3. logout and login again