ls							= list the content of current directory
find /etc/ -name "*.conf"				= find files with given name
locate *.name						= find files with name *.name
grep network /etc/init.d/* 2> /dev/null			= find strings insde files
CTRL+c							= stop the given process
df -h							= check available disc space
du -sh ./*						= check the size of the files in a give directory
ssh username@taito.csc.fi				= connect to the given server
scp file.txt username@taito.csc.fi:.			= copy file.txt to Taito
rsync -avt linux_learn.txt tmalkiew@taito.csc.fi:'$HOME'	= copy file
wget http://ftp.gnu.org/gnu/hello/hello-2.7.tar.gz	= get file from the web
zip linux_zip.zip linux_learn*				= create a zip archive
unzip -l linux_zip.zip					= list the content of zip archive
unzip linux_zip.zip					= unzip the archive
tar -cvf linux_learn.tar linux_learn*			= create a tar archive
tar -cvzf tar_test.tgz tar_test/			= create a tar archive and compress with gzip
tar -cvjf tar_test.bz2 tar_test/			= create a tar archive and compress with bzip2
tar -xvf linux_learn.tar				= extract tar archive
rm linux_learn_copy.txt					= remove the file linux_learn_copy.txt
ln -s ../linux_learn.txt linux_lear_symbolic_link.txt	= create a symbolic link to a file
chmod u+x file.txt					= add execute permissions for the user who owns it
vi linux_learn.txt					= edit the file linux_learn.txt with vi editor
mkdir hello_world					= create a directory named hello_world
cd hello_world/						= go to the directory hello_world
pwd							= print on the screen the current working directory
hostname 						= print the name of the host on teh screen
rm linux_learn.txt					= remove the file linux_learn.txt
ln -s ../linux_learn.txt linux_lear_symbolic_link.txt	= create a symbolic link to file linux_learn.txt located one directory up
alias							= list all the aliases
alias llt='ls -lrt'					= create an alias
cat linux_learn.txt					= print the content of the file linux_learn.txt on the standard output, i.e., screen
cat -n linux_learn.txt					= print the output and number all output lines
man rsync						= show the manual entry for the command rsyns