Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base

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Part 3 – Mastering Grep – Usage Examples

Here is an example command that invokes GNU `grep’: grep -i ‘hello.*world’ menu.h main.c This lists all lines in the files `menu.h’ and `main.c’ that contain the string `hello’ followed by the string `world’; this is because `.*’ matches zero or more characters within a line....

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IPMP Configuration – Solaris 10 vs Solaris 11

The Oracle Solaris 11 IP Multipathing (IPMP) feature has a new conceptual model. The IP interfaces are now grouped into a “virtual” group IP interface (e.g. ipmp0) that serves all your data IP addresses while any test addresses (probe-based failure detection) are assigned to the underlaying...

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Troubleshooting NFS Configuration in Linux

There are three management commands that help with troubleshooting NFS from both the server and client sides: mountstats          Shows information about mounted NFS shares nfsstat                  Shows statistics of exported resources nfsiostat              Shows statistics of NFS mounted shares First, let’s look at which resources are exported. For...

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