Linux - basic commands

Linux - basic commands

pwd ->shows current path
ls  ->shows files in current path
ls -l ->shows files with right in current path
ls -la  ->shows files with right in current path + invisible once
cd Downloads/ ->changes directory to folder "Downloads"
cd .. ->changes directory to folder above
cd  ->changes directory to home folder
mkdir test  ->creates a folder named "test" 
touch test.txt  ->to create a file named "test.txt"
wget https://en.wikipedia.org/wiki/Wget ->lets you download the wiki page to wget
du -h Wget  ->shows the filezise of your newly downloaded article. -h makes it more readable
cat test.txt  ->to see the content of the file
head test.txt ->shows the first line of file
tail text.txt ->shows the last line of file
mv text.txt Downloads/  ->moves the file to "Downloads/"
mv Downloads/test.txt . ->moves the file back to current path
cp test.txt ~/Downloads/test.txt  ->creates a copy of the file in another folder
rmdir test  ->will remove the directory
rm test.txt ->removes the file
find ~ -name test.txt ->searches for a file name in a certain directory
locate test.txt ->locates all files with certain name in filesystem
ps  ->shows running processes in shell
top ->shows an overview of current running processes
strg+c (keys) ->exit out of command like top
free  ->shows memory usage
uptime  ->shows uptime of system
uname -a  ->gives information about system
whoami  ->shows current used user
groups  ->shows the groups you're in
passwd  ->to change password of user
passwd test ->to change the password of user test
w ->shows logged in users
alias ipconfig=ifconfig -a ->creates an alias, where can get used as shortcut (you can just enter ipconfig (Windows))
clear ->clears terminal screen
man chmod ->opens the manual for chmod command, to explain you how to use it
history ->shows the comand line history
poweroff  ->turn system off
reboot  ->lets system reboot
exit  ->exits console
sudo  ->added in front of command to do it as superuser
sudo!!  ->in case sudo gets forgetten and you want to repeat last command as superuser