Reduce file size/quality of pdf using ghostscript

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf

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Write and execute a Matlab script without opening Matlab

Here's an example of using cat to write your m-file and then execute from the command line. This particular example will just plot and print 10 random numbers.

	filename=my_script.m;
	cat > $filename << EOF
	figure
	plot(rand(1,10))
	print -dtiff test.tif
	close
	EOF
	chmod +x $filename
	/usr/local/MATLAB/R2011b/bin/matlab -nodesktop -nosplash -r "my_script;quit;"

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