Исправление Darth_Revan, (текущая версия) :
#!/bin/sh
sed -i 's|^\(application/pdf=\)\(.*\)\(gimp.desktop;\)\(.*\)$|\1\2\4\3|' /usr/share/applications/mimeinfo.cacheИсходная версия Darth_Revan, :
#!/bin/sh
sed -i 's|^\(application/pdf=\)\(gimp.desktop;\)\(.*\)$|\1\3\2|' /usr/share/applications/mimeinfo.cache