ex1.幾個Linux指令

ls
ls -al
echo
cat
mkdir
pwd
who
whoami
cd
rmdir
rm
cp
mv
grep
find
man
ping
ifconfig
ps
top
reboot
firefox anwendeng.blogspot.com/2019/09/ex1linux.html&
history
shutdown
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sudo apt-get update
sudo apt-get upgrade
sudo apt-get install build-essential
sudo apt-get install synaptic
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作業：練習20個以上的Linux指令

然後
history > hh.txt
cat hh.txt