Basic Linux commands you should know

Basic Linux commands you must know

ls	List the files of the given directory ls filename	ls -l   ( list details like size, permissions,links etc.) ls /bin
cd	change to directory cd path	cd /home/tom/cprograms cd .. (go to parent directoru)
cp	copy a file cp source destination	cp a.txt b.txt cp a.txt /home/tom/cprograms
rm	delete a file rm filename	rm a.txt rm * (delete all files in the current directory)
pwd	print working directory (current) pwd	pwd
mv	rename a file mv oldname newname	mv old.txt new.txt
gcc	compile a c program using gcc compiler gcc cfilename	gcc program.c gcc -Wall pr2.c (Display all warnings)
chmod	Change mode of a file - read/write/execute chmod mode filename	chmod +rwx  file chmod -w a.c (Make the file readonly) chmod 0777 file2 (Make file2 read, write and executeable)
man	Display manual page of given command or c function man command	man ls man chmod man printf