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32 total results found

My hard disk is dying! How do I make an emergency backup?

MacOS, Windows, and Linux

Disaster has struck and your hard disk is in its final death throes. No problem, you made a backu...

Awk Explained

MacOS, Windows, and Linux Linux and Unix

Awk is a Unix tool that can be very useful for dealing with text but can be hard to understand. H...

Manipulating data on Linux

MacOS, Windows, and Linux Linux and Unix

This is an introduction to those using Linux for data analysis for the first time.It came from a ...

Thin Client technology - Linux Terminal Server Project HOWTO

MacOS, Windows, and Linux Linux and Unix

The text below was copied with permission from post by Harry Mangalam, UCI, to UC-CSC Mailing Lis...

Apache log shell scripts

Programming and Web Development

Return count of timestamps with most error logs. A couple years ago an app error_log reported ab...

How to take screenshots

Useful Links

Quick answer: http://take-a-screenshot.org/ (different tabs for different systems, though it loo...

Location of the sudo log file

MacOS, Windows, and Linux Linux and Unix

The log file contains the commands issued along with the issuers’ user names. Distribution Lo...

Useful OSS Security Tools

Cybersecurity

1 – Alienvault – Open Source Security Information Management system – good review in the latest (...

SAS on 64b Ubuntu Linux

MacOS, Windows, and Linux Linux and Unix

This was contributed by a colleague from UCI, Harry Mangalam.Having spent 3 days debugging this, ...

PHP ODBC Setup Guide

Programming and Web Development PHP

Guide to setting up php-odbc for connection to Registrar database. Example for RedHat EL 5.Create...

My webserver has died! How do I bring it back online in a hurry?

Programming and Web Development

The obvious answer to this is to restore your backup onto a spare server. Or if it’s just a drive...

Useful Commands for Vi

MacOS, Windows, and Linux Linux and Unix

The page is meant to document some of the more useful, but obscure commands in vi. For commands e...

Reasons to Use Vim over Vi

MacOS, Windows, and Linux Linux and Unix

This page Difference Between VIM and vi goes over some of the advantages of vim over vi. (Note: ...

Advantages of less over more (UNIX)

MacOS, Windows, and Linux Linux and Unix

This article is intended to provided reasons to use the UNIX program less over its predicessor mo...

Finding most recently changed files in Unix

MacOS, Windows, and Linux Linux and Unix

How do I find the most recently changed files in a set of subdirectories on Unix or Linux?Answer ...

How can I check/verify that Red Hat Enterprise Linux is up-to-date for Daylight Savings Time

MacOS, Windows, and Linux Linux and Unix

As the root user, enter the following at the command line:$ zdump -v /etc/localtime | grep 2007Yo...

UNIX Tutorials

MacOS, Windows, and Linux Linux and Unix

Learn UNIX in 10 minutesUNIX Tutorial for BeginnersHow To Look Like A UNIX GuruBest Practices Lea...

How do I keep color output when paginating shell output through less?

MacOS, Windows, and Linux Linux and Unix

Let’s say that you like the color output that comes out of ls (different colors for different fil...

On a UNIX / Linux system, how do I view which shared libraries a program needs?

Programming and Web Development

To get a list of shared libraries that a program needs:ldd /path/to/programThis will give you a l...

PHP Client can break `less`

MacOS, Windows, and Linux Linux and Unix

When you do php through command line (i.e. `php somescript.php`) and you pipe it to less (i.e. `p...