This command will send a line from a given text file one every 10 mins as an SMS to a given number.
Install a list of packages from a text file. cat packages.txt | xargs apt-get install
Use this command to move files from folders two level deep to the current folder… mv */*.* .
You can use locate to find files with name that matches a said regexp… locate -i -r ‘\.jpg$’
Double space a file with Ruby using the command ruby -pe ‘puts’ < file.txt
Show list of files provided by a rpm package installed rpm -ql package_name
First show system events. Second command show events inherent to the process of booting kernel. tail /var/log/messages tail /var/log/dmesg