Por favor, tente o seguinte comando, ele deve iniciar os dois trabalhos:
gnome-terminal --tab -e "
sh -c '
(gedit /media/ubuntuman/Onces\ And\ for\ Al/scripts/faceBook &) ;
sudo cpulimit -e ubuntu-tweak -l 80;'"
Os parênteses denotam um subshell no bash. Para citar a página man:
(list) list is executed in a subshell environment (see COMMAND EXECU‐
TION ENVIRONMENT below). Variable assignments and builtin com‐
mands that affect the shell's environment do not remain in
effect after the command completes. The return status is the
exit status of list.