Interesting articles: Filters that Fight Back, August 2003. http://www.paulgraham.com/ffb.html A Local Revolution, April 2009. http://www.paulgraham.com/revolution.html
Joining multiple PDF files into a single PDF in Linux
Problem Merge (join) several PDF files into a single one. Analysis You need a GhostScript package. Solution Execute the following command: $ gs -dBATCH -dNOPAUSE -q -sDEVICE=pdfwrite -sOutputFile=finished.pdf file1.pdf file2.pdf finished.pdf is the resulting file. You might add as many
Using multiple milters
There are ways to use multiple milters with Postfix. Milter Manager For more details see the References. References milter manager 0.7.0 http://www.mail-archive.com/postfix-users@postfix.org/msg06625.html milter.org – an interactive catalog of sendmail mail filters – https://www.milter.org/developers/api/xxfi_connect Postfix Mailing List Discussion http://archives.neohapsis.com/archives/postfix/2009-03/1525.html
Shell script gives you an “unary operator expected” message
Problem /bash/sh gives you an “unary operator expected” warning message. Analysis This usually happens when you have in your script a comparision inside condition without using quotes such as: if [ ${2} = “yes” ]; then … Solution Placing quotes
Computer Science Citation Databases
SCOPUS URL: http://www.scopus.com/ SCImago Journal and Country Rank URL: http://www.scimagojr.com/journalrank.php?area=1700&category=0&country=all&year=2007&order=sjr&min=0&min_type=cd ACM URL: http://portal.acm.org/citation.cfm ISI Journal Citation Index (or the Extended Index) URL: http://isiknowledge.com URL: http://isiwebofknowledge.com/researcherid/ INSPEC (Ei) – by Elsevier URL: http://www.ei.org/databases/inspec.html ZMATH – The database Zentralblatt MATH URL: http://www.zentralblatt-math.org/zmath/en/