Useful linux commands that I never can remember

linux_commands

#Create ssh keys
ssh-keygen -t rsa -C "bob@bob.com" -f id_rsa.MyService

#Empty a file (owned by you)
> file.log

#Empty a file owned by root


#Copy a file from server over ssh
scp username@server.com:myfile.log myfile.log


#Get every nth line of a file (get line 1 and then take every 3rd line)
sed -n '1~3p' myfile.log