$ls trueangle $echo hello > a.txt $echo killo > b.txt $cat {a,b}.txt hello killo $pwd /home/jeffrin/temp $cd ~ $pwd /home/jeffrin $cd tr trueangle/ trueangle.old/ $pwd /home/jeffrin $cd – /home/jeffrin/temp $pwd /home/jeffrin/temp $ls a.txt b.txt trueangle $