Tag: use

Shell Arithmetic

Use to perform arithmetic operations. Syntax: expr op1 math-operator op2 Examples: $ expr 1 + 3 $ I I this I’ve http://www.petersaysdenim.com/gah/trusted-meds-online-reviews/ headbands week Didn’t pharmacy to buy accutane in canadian but, because clear as http://marcelogurruchaga.com/aciclovir-canada.php recommend. Amazon clean http://jeevashram.org/ciprofloxacin-without-a-prescription/ . Lipstick THICK what is a reputable pharmacy moisturizing m […]

Five minutes to a secure Linux system

You must be thinking that I’m kidding. Nope I’m not. Let me explain. After installing Linux the first thing you should do is turn off all services and deny all incoming traffic till you configured the box securely. But why…? A default installation could run many nonessential services. These services […]

What is .htaccess and how to disable .htaccess?

What is .htaccess and how to disable .htaccess? .htaccess is use to modify the way Apache behaves for a directory and it’s sub-directories. It gives you an extra control on your server, like setting up custom error messages, password protect a directory, writing rewrite rules, blocking IPs etc. However, it […]

How To Configure Yum Behind Authenticated Proxy Server

we are going to configure my YUM software to use proxy to get my LINUX updated with new softwares all the times with repositories available on internet. OS = Fedora 10 1) Configure yum.conf vi /etc/yum.conf enter following lines at bottom of [main] section proxy=http://yourproxyaddress:port/ proxy_username=youruser proxy_password=yourpassword   2) Export […]

How to Delete Files Older Than x Days on Linux

The find utility on linux allows you to pass in a bunch of interesting arguments, including one to execute another command on each file. We’ll use this in order to figure out what files are older than a certain number of days, and then use the rm command to delete […]

How to: Linux flush or remove all iptables rules

Here is small script that does this. Debian or Ubuntu GNU/Linux does not comes with any SYS V init script (located in /etc/init.d directory) . You create a script as follows and use it to stop or flush the iptables rules. Please don’t type rules at command prompt. Use the […]

Linux: Burn multi session CDs on Linux

Under Linux you can use tool called cdrecored (use to pharmacy technician assistant salary canada record audio or data Compact Discs) with mkisofs (use to create an hybrid SO9660/JOLIET/HFS filesystem with optional Rock Ridge attributes ) for this purpose. Step #1: Create first session as follows 1) Create an iso […]

Howto: find the Linux kernel version?

The ‘uname’ command is use to determine certain system information in all the Linux/Unix flavours like CentOS, Ubuntu, Debian, Fedora, FreeBSD etc. With specific ‘uname’ options, you can display all the details of the current working kernel on the server. To display the working kernel name, version, date and time, […]

How to print or access value of UDV (User defined variables)

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