Category Archives: Command Line

How do I find out if I am running 64bit or 32bit Centos?

Posted on July 20, 2010 by admin

Sometimes you can’t remember if you installed 64bit or 32bit centos, to find out which version you are using; uname -a And you will get a response like [root@monitor zenoss]# uname -a xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx i686 i686 i386 GNU/Linux

Posted in Centos 5.2, Command Line, General Command Line | Tagged , , | 2 Comments

How Do I Find Which Version of Centos I Am Running?

Posted on July 20, 2010 by admin

Sometimes you install a centos machines ages ago and can’t remember what you installed. If you want to find out which version it is, easy tail /etc/redhat-release This will return something like; [root@]# tail /etc/redhat-release CentOS release 5.2 (Final)

Posted in Centos 5.2, Command Line, General Command Line | Tagged , , | Leave a comment

Upgrade from zenoss 2.5.2 stack installer to zenoss 3.0 on Centos

Posted on July 19, 2010 by admin

Instructions from http://nchc.dl.sourceforge.net/project/zenoss/Documentation/zenoss-3.0.x-docs/zendocs-3.0.0/Zenoss_Core_Installation_04-072010-3.0-v01.pdf Get the ZenPacks.zenoss.PreUpgrade30-1.0-py2.4.egg wget http://downloads.sourceforge.net/project/zenoss/zenpacks-3.0%20%28Latest%20Stable%29/zenpacks-3.0.0/ZenPacks.zenoss.PreUpgrade30-1.0-py2.4.egg?use_mirror=nchc&ts=1279596576 Change the permissions chown zenoss.zenoss ZenPacks.zenoss.PreUpgrade30-1.0-py2.4.egg chmod 777 ZenPacks.zenoss.PreUpgrade30-1.0-py2.4.egg Become the zenoss user su zenoss Run the install zenpack –install ZenPacks.zenoss.PreUpgrade30-1.0-py2.4.egg Restart zopectl zopectl stop zopectl start Start the zencatalog zencatalog start … Continue reading →

Posted in Centos 5.2, Command Line, General Command Line, Open Source, Zenoss | Tagged , , , , | Leave a comment

How To Import a Mysql Database on the Command Line

Posted on April 20, 2010 by admin

Every so often its useful to import a .sql (exported sql file) into mysql. Make sure the database already exists. mysql -u root -p create database NAMEOFDB; exit then import you db.. mysql -uUSERNAME -pPASSWORD NAMOFDB < MYDATABASE.sql

Posted in Command Line, Mysql | Leave a comment

How To Add /usr/local/bin to your PATH on Centos

Posted on April 1, 2010 by admin

To find the directories in your PATH, run the following command: echo $PATH Adding to your PATH Add /usr/local/bin to yor PATH: export PATH=$PATH:/usr/local/bin /etc/profile file defines path for all users. Edit file vi /etc/profile My profile file looks like … Continue reading →

Posted in Centos 5.2, Command Line | Leave a comment

How To Add a Symbolic Link in Centos

Posted on April 1, 2010 by admin

ln -s [TARGET DIRECTORY OR FILE] ./[SHORTCUT] For example: ln -s /usr/local/apache/logs ./logs

Posted in Centos 5.2, Command Line | Leave a comment

How To Install Suns VirtualBox tools on a Centos Virtual Machine

Posted on July 22, 2009 by admin

If you get the error Could not find the Linux kernel header files – the directories/lib/modules/2.6.18-128.el5/build/include and /usr/src/linux/includedo not exist. Then you need to install the following packages. yum install kernel sources yum install kernel-devel yum install gcc Create the … Continue reading →

Posted in Centos 5.2, Command Line, VirtualBox | Leave a comment

How To Turn Off Overwrite Request on when you copy in Centos

Posted on July 15, 2009 by admin

When copying a folder in centos, it interactively asks if you want to overwrite a file, the -f flag does not work.  Simple solution, use \cp.

Posted in Centos 5.2, Command Line | Tagged , , | Leave a comment

How to Find Large Files using Linux Command Line

Posted on May 7, 2009 by admin

find / -type f -size +20000k -exec ls -lh {} \; | awk ‘{ print $9 “: ” $5 }’ or find / -type f -size +20000k -exec ls -lh {} \; | awk ‘{ print $9 “: ” $5 … Continue reading →

Posted in Centos 5.2, Command Line | Tagged , | Leave a comment

Great Site For Scripting and Command Line

Posted on February 26, 2009 by admin

Twitter is a cool way to find great resources.  Shell fu is following me so I checked out their site, sounded good.  Great resource, lots of useful  and advanced shell scripts and command line tips. Check it out at http://www.shell-fu.org/ Follow … Continue reading →

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