Something

cd /home/moodles/htdocs/build_logs
rm linux64_SDL.txt
rm minilog.txt
echo "======================" >> /tmp/minilog.txt
echo "Undefined reference(s)" >> /tmp/minilog.txt
echo "======================" >> /tmp/minilog.txt
grep "undefined reference" *.txt >> /tmp/minilog.txt
echo " " >> /tmp/minilog.txt
grep "cannot find" *.txt >> /tmp/minilog.txt
echo "=========================" >> /tmp/minilog.txt
echo "No such file or directory" >> /tmp/minilog.txt
echo "=========================" >> /tmp/minilog.txt
grep "No such file or directory" *.txt >> /tmp/minilog.txt
grep -A 1 "multiple definition" *.txt >> /tmp/minilog.txt
#rgrep -B 1 "\berror:" *.txt >> minilog.txt
grep -B 1 -E 'Error 1|error:' *.txt >> /tmp/minilog.txt
mv /tmp/minilog.txt /home/moodles/htdocs/build_logs/minilog.txt