If you want to switch the current command line session to another directory, three commands are needed: pwd, lsand cd.
pwdThe meaning is "print working directory", which will display the absolute path of the current directory.lsThe meaning is "list directory contents", it will list the contents of the current directory. There are other optional parameters for this command.cdThe meaning is "change directory", it will change the current directory to the directory you specify. If you don't specify, it will return your home folder.
pwd current working directory
cd (without parameters) into root
cd (folder) to enter the folder
cd .. parent directory
cd ~ back to root
cd - go back to the last visited directory
rm filename delete
cat filename (|less) View the file under the terminal
ls lists all files in a directory
cp filename target directory to copy the file to the target directory
~ represents root such as: ~/Document/CPP2/
mkdiv new folder
g++ source file name compiles the source file, producing a.out
./filename run Example: ./a.out <input filename> output filename
control+d interrupt a.out running
nano write scripting language ctrl+o storage
nano ....sh open
bash ....sh run script
echo "...$i..." output statement
tar -zxf abc.tar.gz tar file decompression
ssh [email protected] Connect to the 222 server remotely with the root account
unrar x abc.rar rar file decompression, need to install rar tool