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March 2, 2022 – 2:00 pm

Books have been written on the subject of awk and sed. Here’s a small sample of commands I put together over the years that are useful for everyday system administration tasks. Most of these tasks …

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Unix and Linux network configuration. Multiple network interfaces. Bridged NICs. High-availability network configurations.


Reviews of latest Unix and Linux software. Helpful tips for application support admins. Automating application support.


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Commands & Shells

Cool Unix shell commands and options. Command-line tools and application. Things every Unix sysadmin needs to know.

Useful awk one-liners

November 19, 2005 – 10:38 pm
colorful shells

Useful awk code snippets for your sysadmin tasks.

Copy directory structure and files with cpio

November 19, 2005 – 10:38 pm

A basic command to copy directory structure and contents using cpio.

Using FTP with pipes

November 19, 2005 – 10:37 pm

Pipe in Unix is a method of passing information from one command to another. The pipe take the output of the first command and sends it as input for the second command. The a second …

Create TAR and pipe through gzip

November 19, 2005 – 10:36 pm

A simple example of creating a gzip-compressed tar archive of the current directory.

Fsck operations

November 19, 2005 – 10:36 pm

The following is a collection of examples using fsck command. It is important to unmount VXFS before running fsck on Veritas filesystem.

RSync remote copy

November 19, 2005 – 10:35 pm

The following is an example of using rsync to perform a irectory copy between two hosts over the network.

Oracle reinstallation

November 19, 2005 – 10:35 pm

Before beginning Oracle REinstall, make sure to remove the /var/opt/oracle/oraInst.loc file created by /tmp/orainstRoot.sh script during prior installation.
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Create and mount ISO image under Solaris

November 19, 2005 – 10:33 pm

Here’s an example of creating and mount a CS ISO image under Solaris.