Linux Basics

First, log in to the cluster.

• Check the node you are connected to

  hostname
  

• Print the current working directory

  pwd
  

• List all files and folders in the current directory

  ls
  

• Change directory

  cd folder_name
  

• Create a new directory

  mkdir <new_folder_name>
  

List of useful linux commands

Command	Description	Example
ls	Lists files and directories in the current directory	ls, ls -la
cd	Changes the current directory	cd .., cd
pwd	Displays the current directory path	pwd
mkdir	Creates a directory	mkdir <name>
touch	Creates an empty file	touch <name>
rm	Removes a file	rm <name>, rm -r <folder>
cp	Copies a file	cp <name> <new_directory>
mv	Moves or renames a file	mv <name> <new_directory>
cat	Displays the contents of a file	cat <name>
less	Displays the contents of a file page by page	less <name>
grep	Searches for a pattern in a file	grep <pattern> <name>
chmod	Changes file permissions	chmod <permissions> <name>
man	Displays the manual page for a command	man <command>