change directory - change directory
cd ~: Enter the user's home directory
cd ..: return to the parent directory
show directory - list
ls: show non-hidden files and directories (-a includes show hidden)
ll: display a list of the contents of the directory in long format
create directory - make directory
mkdir /usr/test: Create a test folder under usr
Manipulate files - move - copy
mv aaa bbb: Rename the file aaa to bbb
mv /usr/* .: Move all files under the usr file to the current folder
cp file1 /usr/men/tmp/file2: Copy the file file1 to the directory /usr/men/tmp and rename it to file2
unzip files
tar czvf my.tar file1: single file compression and packaging
tar czvf my.tar file1 file2,...: multiple files compression and packaging
tar czvf my.tar dir1: single directory compression and packaging
tar czvf my.tar dir1 dir2: multiple directories compression and packaging
tar xzvf my.tar: unpack to the current directory
gzip -d FileName.gz:decompress
gzip FileName:compress
Edit configuration file
vi file1: edit file1 file
i: enter insert edit mode
：: enter command mode
wq: save and exit
q！: do not save and exit
firewall
service iptables status: Check the firewall status
service iptables start: Temporarily turn on the firewall
service iptables stop: Temporarily turn off the firewall
chkconfig iptables on: Turn on the firewall
chkconfig iptables offpermanently: Turn off the firewall permanently
CentOS7
firewall-cmd --state: Check firewall status
service firewalld start: Turn on firewall
service firewalld stop: Turn off firewall
restart the network card
centos：sudo service network restart
ubuntu：sudo /etc/init.d/networking restart
process - process status
ps: report the process status of the current system
kill: kill the process
find
find / -name *filename*: find files
summary
For record only, easy to view and update