unix-cheat-sheets

    This document is primarily written with reference to system performance monitoring and tuning but these tools are available in other Unix variants & Linux also with slight syntax difference.   Performance Analysis Tools

how-do-i-create-an-ubuntu-live-usb-using-a-mac

We would encourage Mac users to download Ubuntu Desktop Edition by burning a CD. But if you prefer to use a USB stick, please follow the instructions below. Note: this procedure requires that you create an .img file from the .iso file you download. It will also change the filesystem that is on the USB stick to make it bootable, so backup all data before continuing....

aws-vs-azure-vs-google-cloud-pricing-compute-instances

A summary of the results:

  • Google Cloud is the lowest price for 3 scenarios; highest price for 7.
    • Google Cloud tends to be the lowest price when no SSD is needed and the higest when SSD is required due to the price of adding on a 375 GB local SSD.
    • Google Cloud is higher priced on the "per GB RAM" cost for highcpu due ...

free-open-source-ssl-encryption

Let's Encrypt is a free, automated, and open certificate authority brought to you by the non-profit Internet Security Research Group (ISRG). To enable HTTPS on your website, you need to get a certificate (a type of file) from a Certificate Authority (CA). Let’s Encrypt is a CA. In order to get a certificate for your website’s domain from Let’s Encrypt, you ...

awk-magic

Here are some command line examples, which i've used over time.

  1. Add 2nd & 10th values for matching pattern "Eg: eth0 in /proc/net/dev"
    TOT=$(awk '{ if ($1 ~ /eth0/) print $2 + $10 }' < /proc/net/dev)
  2. Add all the values for a matching pattern "Eg:- proc3 in /proc/net/rpc/nfs"
      nfs_tot=$(awk '{ ...

system-diagnostics

  The goal of this page is to show the usage of helpful tools for diagnosing Linux systems. Diagnosing systems means more than running diagnostic tests; we're also concerned with first failure data capture, error log analysis, preventative testing, and system inventory gathering.

  • Check the ISP ip from a command
    wget -q -O - checkip.dyndns.org|sed -e 's/.*Current I...

openstack-cheat-sheet

  For many Enterprises, moving to the cloud is easier said than done. While the move to the Public cloud is the first option for some, there are many Enterprises which are wary of the issues of Security, Control and lack of flexibility with the leading cloud platforms. Private cloud was not an easy option till  made it easy. For any Enterprise planning to move to the Private Cloud,  p...

vmware-esxi-upgrade-on-cli

There are several methods to upgrade your ESXi but in my opinion using the vSphere CLI tool is by far the easiest. One of the best experience is with my Dell T300. Version 6.5 fails to install with support rejection from . The fix was to install their latest supported  version 5.5 and then upgrade to 6.5 as demonstrated. It is recommended to go in s...

all-in-one-cli-for-wordpress

A shell wrapper that can help you upgrade the entire wordpress site and its supporting components.

Tool installation

  • Downloading the Phar file is our recommended installation method.
  • Check your environment meets the minimum requirements 1. UNIX-like environment; limited support in Windows environment 2. PHP 5.3.29 or later 3. WordPress 3.7 or later
...

©2017 | All Rights Reserved ITanchor