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check open ports without netstat or lsof

Add a shadow to picture
Please take notice that if you are going to use an JPG file for shadow effect, let change -background none to -background white! Because -background none make a transparent effect while JPG doesn't support transparent! And when viewing, you will get a bacl box! So we will use an white background under! We can use other color as well!

Getting ESP and EIP addresses from running processes
'ps' let you specify the format that you want to see on the output.

Grab a list of MP3s out of Firefox's cache
Ever gone to a site that has an MP3 embedded into a pesky flash player, but no download link? Well, this one-liner will yank the names of those tunes straight out of FF's cache in a nice, easy to read list. What you do with them after that is *ahem* no concern of mine. ;)

Time conversion/format using the date command

Manipulate the metadata when the photo was taken, this will shift with +15hours + 30min

geoip information
geoip from maxmind try to get the small utility via: apt-get install geoip

backup directory. (for bash)

Install pip with Proxy
Installs pip packages defining a proxy

Sort a character string
Sorts a character string, using common shell commands.


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