Archive for February, 2010

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Basic Linux Commands

February 17th, 2010 by @HKw@! | No Comments | Filed in centos, Fedora, Linux, Ubuntu

Viewing, copying, moving and deleting files

ls Display the contents of the current directory
ls -a Display also hidden files and hidden directories
cp filename /path/dir_name Copy filename into directory /path/dir_name
cp -r dir_name /path/dir_name2 Copy the entire dir_name into /path/dir_name2
cp filename1 filename2 /path/dir_name Copy filename1 and filename2 into /path/dir_name
rm name Remove a file or directory called name
rm -r name Remove an entire directory as well as its included files and subdirectories
mv filename /path/dir_name Move filename into /path/dir_name
mv filename1 filename2 Rename filename1 to filename2
cat filename Display filenames contents
more filename Display filename in pages. Use spacebar to view next page
head filename Display filenames first 10 lines
head -15 filename Display filenames first 15 lines
tail filename Display filenames last 10 lines
tail -15 filename Display filenames last 15 lines
pwd Display current directory
cd /path/dir_name Change to directory /path/dir_name
cd .. Go 1 directory up
mkdir dir_name Create directory dir_name
rmdir dir_name Delete directory dir_name

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How To Reset MySQL Root Password

February 12th, 2010 by @HKw@! | No Comments | Filed in centos, Linux, Open Source

I setup MySQL Server on CentOS few month ago, but i forgot the root password for MySQL. How to reset the password?

You can recover MySQL database server password with following steps.

Step # 1: Stop the MySQL server process.

service mysqld stop

Step # 2: Start the MySQL (mysqld) in safe mode with the –skip-grant-tables option

mysqld_safe --skip-grant-tables -u root &

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Mac OS X 10.5 Tricks – Quick Look preview content of folder in semi-transparent

February 10th, 2010 by @HKw@! | 1 Comment | Filed in Mac OS X, Uncategorized

Quick Look is a quick preview feature which was introduced in Mac OS X 10.5 Leopard. Quick look allow us to preview the files, multiple page documents and video with opening them. You just have to select the files in the Finder and press the Space bar to preview it.

Today, i will going to show you a trick on Quick look. This trick called X-Ray Folder. This feature is hidden by default. We need to enable it through Terminal. Normally when we Quick Look on folder, it will show the regular folder icon. But if you enable X-Ray Folder feature,  the folder icon will be semi-transparent, with previews of the folder’s contents visible in the Quick Look window. (more…)

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