change permission recursively to folders only

23Mar10

find . -type d -exec chmod 777 {} \;

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aptitude search ‘and’

16Mar10

this is really something really annoying about aptitude, if you run: aptitude search linux headers it will make an ‘or’ search…to perform a ‘and’ search, which I need 99.9% of the time, you need quotation marks: aptitude search ‘linux headers’

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using numpy dtype with loadtxt

03Mar10

Let’s say you want to read a text file like this: #filename start end fdsafda.fits 23143214 23143214 safdsafafds.fits 21423 23423432

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