Question: Why my cron job does not get executed at the specified time ? Answer: There may be lot of reasons why a cron job may not get executed. Let us review 5 important reasons of why a cron job does not run at the specified time and how to resolve those issues. 1. Misinterpretation [...]
July 2009
Question: How do I change MySQL root Password? Answer: You can change MySQL root password using one of the following 3 methods. These methods can be used on both Windows and Unix Environment including Ubuntu, Debian, CentOS, Fedora, RedHat, Arch Linux, SUSE etc., Method 1. How to Change MySQL Root Password Using mysqladmin Command? You [...]
In this article let us review how to correct spelling of a word, identify meaning for a word, identify antonym for a word right from Unix / Linux command line. 1. Lookup Words Beginning with a Given String Using Look Command Look-up the correct spelling for a word using Unix look command as shown below. [...]
ls – Unix users and sysadmins cannot live without this two letter command. Whether you use it 10 times a day or 100 times a day, knowing the power of ls command can make your command line journey enjoyable. In this article, let us review 15 practical examples of the mighty ls command. 1. Open [...]
Question: How do I view, modify and recreate the new initrd.img on Ubuntu, Debian, CentOS, Fedora, Red-Hat, Arch Linux, or SUSE distributions? 1. How To View Content Of initrd.img file? initrd.img is in gzip format. So move initrd.img to initrd.gz as shown below. # cp /tftpboot/el5/initrd.img . # ls cdrom initrd.img # mv initrd.img initrd.gz [...]
Question: How do I find out all the available file attributes. i.e I would like to know more about a file or directory than what the ls -l command displays. Answer: Everything in Unix is treated as files. This includes devices, directories and sockets — all of these are files. Stat command displays file or [...]
Google announced open source lightweight OS that is initially targeted towards netbooks. This is expected to be released in the 2nd half of 2010. Speed, simplicity and security are the key aspects of Google Chrome OS. We’re designing the OS to be fast and lightweight, to start up and get you onto the web in [...]
If you want to convert your website from HTTP to HTTPS, you need to get a SSL certificate from a valid organization like Verisign or Thawte. You can also generate self signed SSL certificate for testing purpose. In this article, let us review how to generate private key file (server.key), certificate signing request file (server.csr) [...]