sudo : superuser do
sudo -i : for change other user to user root
cd : change directory
ls : listing
ls -la : listing with full information of files or folder
/ : root directory
~ : home directory
.. : for previous directory
. : current directory
cp fileName copyLocation
scp -r folder/file copyLocation
rm -rf fileName/folderName : remove directory
top : for mysql running query list
du -sh fileName/FolderName : for file or folder size information
df -h : system all memory information
pwd : present working directory
zip filename.zip fileName/folderName
unzip filename.zip : unzip file
to be continue…