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Replace space in filename
This commands removes space from all the files with specific extension. I've specifed *.jpg as an example.

a function to find the fastest DNS server
http://public-dns.info gives a list of online dns servers. you need to change the country in url (br in this url) with your country code. this command need some time to ping all IP in list.

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"

Export MS Access mdb files to csv
-H suppress Headers -I Inserts instead of csv -R to give ; as the row delimeter. Probably you can concatenate each line with a ; while importing to the db.

command to change the exif date time of a image

slow down CPU and IO for process and its offsprings.

What is my ip?

Removing Prefix from File name
Removing Course name prefix added

Replace duplicate files by hardlinks
This variation can handle file paths containing spaces.

Plowshare, download files from cyberlocker like rapidshare megaupload ...etc
you need to have plowshare installed http://code.google.com/p/plowshare/ plowshare supports Megaupload, Rapidshare, 2Shared, 4Shared, ZShare, Badongo, Divshare.com, Depositfiles, Netload.in, Sendspace, Usershare, x7.to and some others file sharing services.


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