Commands tagged md5sum (27)

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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"

Show current iptables rules, with line numbers

geoip information
Show external IP and geolocation information. Primary feature is the use of tee to echo IP _and_ send to geoiplookup command...Use IP as input for as many commands as you want with more >( [command] ) Thanks to http://www.commandlinefu.com/commands/view/6334/ Requires MaxMind DB and geoiplookup tool. Sample output has IP obfuscated on first line, lines 2-4 from having MaxMind Country && MaxMind City DBs installed

ping with timestamp

Downsample mp3s to 128K
This will lower the quality of mp3 files, but is necessary to play them on some mobile devices.

pngcrush all .png files in the directory
Find all pngs in directory structure and pngcrush them, none destructive. You can just remove the "{}.crush" part if you want destructive.

Delete empty directories
Recursively delete empty directories. Use with care.

Schedule a script or command in x num hours, silently run in the background even if logged out
doesn't require "at", change the "2h" to whatever you want... (deafult unit for sleep is seconds)

Get all URLs from webpage via Regular Expression
Get all URLs from website via Regular Expression... You must have lynx installed in your computer to execute the command. --> lynx --dump "" | egrep -o "" - Must substitute it for the website path that you want to extract the URLs - Regular Expression that you wanna filter the website

Monitor ElasticSearch cluster health - Useful for keeping an eye on ES when rebalancing takes place


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