Commands by javidjamae (3)

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eth-tool summary of eth# devices
Give the Speed and Link status of eth# 0-3. This is sort of what mii-tool does, but eth-tool is better, yet lacks device discovery.

Get ElasticSearch configuration and version details
Replace localhost:9200 with your server location and port. This is the ElasticSearch's default setup for local instances.

Colored SVN diff
Simple way to achieve a colored SVN diff

generate random mac-address using md5sum + sed

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Makes the permissions of file2 the same as file1
Also works with: $chgrp --reference file1 file2 $chown --reference file1 file2

find directory with most inodes/files
Find which directory in one filesystem that contains most inodes or files.

convert a line to a space

Access partitions inside a LVM volume
kpartx can be found inside of the multipath-tools package -a adds the mappings and -d deletes them

Measure, explain and minimize a computer's electrical power consumption
Run this command as root to get enough stats. It works on AMD and Intel machines, including desktops. If ran on a laptop it'll give you suggestions on extending your battery life. You'll need to install PowerTOP if you don't have, via 'apt-get install powertop', etc. To grep the output use: sudo powertop -d | grep ... The many command suggestions PowerTOP gives you alone will increase your command-line fu!


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