If you’ve just bought a new desktop,laptop or server and the box says the box is powered by 2 processors, you can actually verify that.
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General
Howto restrict su command to superuser only in Linux
su is run a shell with substitute user and group IDs. su is used to become another user during a login session. Invoked without a username, su defaults to becoming the super user. The optional argument – may be used to provide an environment similar to what the user would expect had the user logged […]
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Howto Replace multiple file text string in Linux
If you have a folder with a lot of files in a directory and with a specific string that you want to change you can do it in seconds using grep and perl command line
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Rename multiple files to another extension in Linux
Let us say that you want to rename all of your “.php5″ files to “.php” files. You can use for loop.
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