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man cmd
show the manual pages for cmd
list files
ls -a
list all files
ls -l
list files in long format
change directory
cd ..
change directory to the one above
print working directory
mv file1 file2
move file1 to file2
cp file1 file2
copy file1 to file2
rm file
remove file
rmdir dirname
remove empty directory called dirname
rm -r dirname
remove directory dirname and all files inside
mkdir dirname
make directory called dirname
echo hi
output "hi"
reset the terminal if it gets borked
sudo cmd
execute cmd as a superuser
change password
j par
autojump to most recently visited directory with "par" in name
change shell to superuser
current directory
parent directory