Linux: Basic Commands via Putty

cd	Change directory
pwd	To find the exact directory you are in type the command
cd ~/dir1	To navigate to a sub-folder in your home directory i.e. cd /home/keith/dir1 = cd ~/dir1
cd ..	Previous folder (Go back)
rm	Remove file
rm -r	Remove folder i.e. rm -r folder_name
rm -rf FILE_NAME	Force remove folder rm -rf FILE_NAME
tar cvzf	Zip/Archive folder i.e. tar cvzf Target_File_Name.tar.gz   Source_File_Name
tar xvfz	Unzip/Unarchive folder
Unzip	Unzip File_Name.zip - to unarchive .zip files i.e. unzip filesample.zip
Zip -r	Archive folder with .zip extension. i.e. zip  -r  Target_FolderName.zip  Source_FolderName
mv	Move folder/file i.e. mv [file_name] ./[location] Mv file_name ./.. - move to previous directory folder MV comman is also used to rename file name i.e. if I want to rename FILE into FILE1, the command is: mv Current_File_Name New_File_Name
/sbin/ifconfig	To view IP addresses and configurations (similar to Windows ipconfig)
vi	View editor. Once you are on view editor mode, press i to insert and navigate the cursor with keyboard arrows to edit the content.
:wq!	Save and Quit view editor mode.
:q!	Quit editor mode without saving the changes.
cat OR less	File viewer without editing privilege .
scp -r	Server copy file - to copy file from server to server or other directories i.e. scp -r filename* user@servername:/directory * - indicates to copy all content inside a folder User - previleged user at target server @servername - where the file will be copied to :/directory - file path to paste the copied files Follow instructions on screen afterwards.
ps -x	View running services / processes
kill -9 [PID#]	Kill process by force You can perform this task after ps -x (view running processes) i.e. kill -9  12345
tail -100f [log path]	Read last 100 rows of a file. i.e. tail -100f /home/file/abc.log Note: press Ctrl+C to exit tail view.
nohup	Run service/process in the background i.e. navigate to the path where you want to execute the process: nohup ./service_name &
export VAR_ENVR_NAME=	To set Variable Environment i.e.  export ORACLE_HOME=/user/Middleware/OBIEE11g
echo "$VAR_NAME"	View current variable environemtn i.e.  Echo "$ORACLE_HOME"
scp file_name user_name@server_name:path	Copy files from one user to another i.e. scp file_name user_name@server_name:/directory_path
sudo su - username
cp *	Copy all from current file into target_path i.e. cp * /home/user If you have multiple files that starts with the same syntax, i.e. file1, file2, file3 -then you can use this command:  cp file* /home/user This will move all files that names start with file
vi filename	Creates a new file
cp /home/vizid/filename .	. Represents current directory
top	View running services
./opmnctl startproc ias-component=COMPONENT_NAME	To start/stop individual OBIEE OPMN services, this command is used
touch	Create new file (.txt) i.e. touch FILE_NAME
Df	Check hard disk space
du -sh	Check folder usage space du -sh Folder_Name
Free -g	Check server RAM / Memory usage
./opmnctl stopproc ias-component=coreapplication_obips1	Stopping one BI service at a time
find . -name SEARCH_TERM*	Will search all subordinate folders from current directory