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Remove security limitations from PDF documents using ghostscript (for Windows)
#4345 also works under windows

find files containing text
-l outputs only the file names -i ignores the case -r descends into subdirectories

directly ssh to host B that is only accessible through host A
Of course you need to be able to access host A for this ;-)

Throttle download speed (at speed x )
Axel --max-speed=x, -s x You can specify a speed (bytes per second) here and Axel will try to keep the average speed around this speed. Useful if you don?t want the program to suck up all of your bandwidth.

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.

remote diff with side-by-side ordering.
more information: man sdiff

Console clock
Shows a simple clock in the console -t param removes the watch header Ctrl-c to exit

Use top to monitor only all processes with the same name fragment 'foo'
$ pgrep foo may return several pids for process foobar footy01 etc. like this: 11427 12576 12577 sed puts "-p " in front and we pass a list to top: $ top -p 11427 -p 12576 -p 12577

To print a specific line from a file
You can get one specific line during any procedure. Very interesting to be used when you know what line you want.

Convert files from DOS line endings to UNIX line endings
This method will also convert mac line endings.


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