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Using yum to manage installing,upgrading or removing packages in Linux is a great little tool. Sometimes when running a yum transaction you may get a warning that you need to run “yum-complete-transaction”as you have pending or incomplete transactions. Simply running yum-complete-transaction will not do the trick if you have not first ran [...] Sometimes I have the need to send an email with an attachment directly from the console,to do this I use a small email client called “mutt”it can be installed in Centos using; [...] I often am faced with deleteing mails from MAILER-DAEMON that are going to non existant domains in my Postfix queue. Rather than manually deleting each email by hand,I now use a little script that does the job for me. All I do now is type in “delmd”without the quotes and all the [...] I have just been working on a site that needs PHP 5.2 or above. The stock repositories for Centos that are provided by Virtualmin do not contain the PHP version I needed. However they do provide a Bleeding Edge packages,these must only be used if you know what you are doing as many of [...] To check how many emails have been queuing in Postfix (an email server for Linux) and for what period of time you can use the following command #qshape deferred | head The above command will produce the following; The T represents time in minutes The Total represents how many emails have been [...] | 
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