[root@localhost ~]# history
    1  pwd
    2  whoami
    3  id student
    4  usermod -aG wheel student
    5  id student
    6  exit
    7  id student
    8  reboot
    9  echo hello >> /etc/hosts
   10  ls -li /etc/hosts /tmp/myhosts
   11  ln -s /tmp/myhosts mysymlink
   12  ls -li /etc/hosts /tmp/myhosts mysymlink
   13  cat mysymlink
   14  rm /tmp/myhosts
   15  cat mysymlink
   16  ls -l
   17  ln /etc/hosts /tmp/myhosts
   18  exit
   19  history
   20  ln /etc/motd mymessage
   21  ls -il /etc/motd mymessage
   22  echo welcome to this computer
   23  echo welcome to this computer > mymessage
   24  ls -il /etc/motd mymessage
   25  ln -s /etc/motd mewothermessage
   26  ls -il /etc/motd mymessage mewothermessage
   27  rm -f /etc/motd
   28  ls -il /etc/motd mymessage mewothermessage
   29  cat mewothermessage
   30  cat mymessage
   31  ln mymessage /etc/motd
   32  ls -il /etc/motd mymessage mewothermessage
   33  df -h
   34  ln /boot/vmlinuz-4.18.0-193.el8.x86_64 mykernel
   35  ln -s /boot/vmlinuz-4.18.0-193.el8.x86_64 mykernel
   36  ln /etc myetc
   37  ln -s /etc myetc
   38  ls
   39  ls -l
   40  find / -name "hosts"
   41  find / -name "*hosts*"
   42  find / -user student
   43  cat /etc/passwd
   44  find / -user bob
   45  find / -size +200M
   46  find / -size +200M 2>/dev/null
   47  mkdir /root/bob; find / -user bob -exec cp {} /root/bob/ \;
   48  echo $PATH
   49  echo \$PATH
   50  echo '$PATH'
   51  du -hf /home
   52  du -hs /home
   53  du -s /home
   54  tar -cvf my_home.tar /home
   55  ls -l
   56  du -hs /home
   57  du -s /home
   58  tar -czvf my_home.tgz /home
   59  ls -l my*
   60  tar -cJvf my_home.txz /home
   61  ls -l my*
   62  tar -tvf my_home.txz
   63  tar -xvf my_home.txz
   64  ls
   65  yum install -y tree
   66  tree home/
   67  tar -xvf my_home.txz -C /tmp
   68  ls -l /tmp/home/
   69  history
   70  man find
   71  history
   72  ls
   73  gzip mymessage
   74  gzip initial-setup-ks.cfg
   75  ls -l
   76  gunzip initial-setup-ks.cfg.gz
   77  ls -l
   78  file my_home.tgz
   79  vimtutor
   80  vim myfile
   81  history