Thanks for the help everyone!<br><br><br><br><div class="gmail_quote">On Feb 4, 2008 6:49 PM, Reid Thompson <<a href="mailto:Reid.Thompson@ateb.com">Reid.Thompson@ateb.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="Ih2E3d"><br>On Mon, 2008-02-04 at 18:09 +0200, George Moschovitis wrote:<br>> Dear devs,<br>><br>> 2 small unix related questions.<br>><br>> does anyone know about:<br>><br>> - a quick and easy way to remove duplicate lines from a text files?<br>
</div>from <a href="http://www.student.northpark.edu/pemente/sed/sed1line.txt" target="_blank">http://www.student.northpark.edu/pemente/sed/sed1line.txt</a><br><br># delete duplicate, nonconsecutive lines from a file. Beware not to<br>
# overflow the buffer size of the hold space, or else use GNU sed.<br>sed -n 'G; s/\n/&&/; /^\([ -~]*\n\).*\n\1/d; s/\n//; h; P'<br><div class="Ih2E3d"><br>> - a quick and easy way to decide if two image (binary) files are the<br>
> same image/picture?<br></div>diff will tell you if the files are different also<br><br>rthompso@raker ~ $ diff 10000_Galaxies,_HST_Ultra_Deep.png Deathvalleysky_nps_big.png<br>Files 10000_Galaxies,_HST_Ultra_Deep.png and Deathvalleysky_nps_big.png differ<br>
rthompso@raker ~ $ cp 10000_Galaxies,_HST_Ultra_Deep.png junk.png<br>rthompso@raker ~ $ diff 10000_Galaxies,_HST_Ultra_Deep.png junk.png<br><div class="Ih2E3d"><br><br>><br>> thanks in advance for your help!<br>><br>
> -g.<br>><br>> --<br>> <a href="http://gmosx.me.gr" target="_blank">http://gmosx.me.gr</a><br>> <a href="http://joy.gr" target="_blank">http://joy.gr</a><br>> <a href="http://cull.gr" target="_blank">http://cull.gr</a><br>
> <a href="http://nitroproject.org" target="_blank">http://nitroproject.org</a><br>> <a href="http://phidz.com" target="_blank">http://phidz.com</a><br>> <a href="http://joyerz.com" target="_blank">http://joyerz.com</a><br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br><a href="http://gmosx.me.gr">http://gmosx.me.gr</a><br><a href="http://joy.gr">http://joy.gr</a><br><a href="http://cull.gr">http://cull.gr</a><br><a href="http://nitroproject.org">http://nitroproject.org</a><br>
<a href="http://phidz.com">http://phidz.com</a><br><a href="http://joyerz.com">http://joyerz.com</a>