Linux命令

Linux命令

题目：

1. hostnamectl set-hostname xxx
   

2. mkdir /project
   cd /project
   touch file1.txt file2.txt file3.txt
   echo "这是第一个测试文件" | sudo tee file1.txt
   

3. mv /project /home/my_project
   ll /home/my_project 
   

4. useradd user1
   groupadd group1
   

5. chown user1:group1 /home/my_project/file2.txt
   chmod 740 /home/my_project/file2.txt
   

6. df -h /
   

7. top -b -n 1 | head -12  
   # 或
   ps aux --sort=-%cpu | head -6
   

8. tar -zcvf /tmp/my_project_files.tar.gz /home/my_project/*
   tar -zxvf /tmp/my_project_files.tar.gz -C /home/
   

9. vim /etc/sysconfig/network-scripts/ifcfg-ens33BOOTPROTO=static
   IPADDR=192.168.100.100
   NETMASK=255.255.255.0
   GATEWAY=192.168.100.1
   DNS1=8.8.8.8systemctl restart network
   

10. cat > test.sh <<'EOF'
    #!/bin/bash
    read -p "请输入数字: " num
    if [ $num -le 5 ]; thenecho "the number<=5"
    elif [ $num -gt 5 ] && [ $num -lt 10 ]; thenecho "the number is between 5 and 10"
    elseecho "the number>=10"
    fi
    EOFchmod +x test.sh./test.sh