Posts Tagged ‘petri nets’

Find files before/after/in between specific dates

February 14, 2011

Hello folks. \\//,

Well here I am, reading a technical research paper on membrane computing and Petri nets when I decided to download some of the reference materials, conference/journal technical papers, of the paper I’m currently reading.  So I download the reference materials from IEEE Xplore, plus other non-reference materials but still related to the topic I’m reading.

Eventually, I download around 10 PDF files, with filenames made up of purely integers and of course the .pdf extension. Problem is, I’m too lazy (not that much really, I just don’t want to keep doing this manually over and over) to specify each PDF filename, then add them to a compressed archive (this case a RAR file) and then send them to another machine or person or account of mine for archiving.  Essentially, I just want that: to get those PDF files I recently downloaded for this specific topic I’m currently in, not include other PDF files in the same directory, and then compress them into a single RAR file.

How to go over doing this?

Luckily there are for loops and the nifty find command in *nixes like my Ubuntu box. 🙂 So what I simply do is

for i in `find . -type f -cnewer startdate ! -cnewer enddate`; do rar a myrarfile.rar $i; done

which means given 2 reference points, files startdate and enddate, I loop over all files in between the modification times of these two files and then add them to the RAR file myrarfile.rar.

Presto. Problem solved, learned something new. Now, back to reading research papers. 🙂

\\//,

Reference/s:

http://unixhelp.ed.ac.uk/CGI/man-cgi?find

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