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shell script - trying not to use tmp files.

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http://www.linuxquestions.org – How can I do that without tmp1 and tmp2? (information files are good) Code:       cat information_file1 | sed -e 's/\,/\ /g' >> tmp1       echo Messi >> tmp2       cat tmp1 | grep Ronaldo  | cut -d"=" -f2- >> tmp2       rm tmp1       cat information_file2 | fin_func tmp2       rm tmp2 Thanks (HowTos)