Find and replace specific characters in a single line in multiple files with sed. Show Sample Output

This will extract the public key that is stored in the private key using openssl. Show Sample Output

This counts all established sessions on port 80. You can change :80 to any port number you want to check. Show Sample Output

This checks if the branch has been merged with master and then will delete the ones that have been. Keeps your local git repo nice and clean from all the branches. Show Sample Output

This is just a default ssh-keygen command. Prompts for a password that you can use to secure the keys more and uses a higher bit value than the default along with naming the key something other than id_rsa for better file identification.

This will remove the gpg-pubkey-1aa043b8-53b2e946 from rpm/yum and you'll be prompted to add it back from the given repo. Show Sample Output

This will list all the gpg keys that were accepted and installed for yum. Show Sample Output

This will list all the files that are a gigabyte or larger in the current working directory. Change the G in the regex to be a M and you'll find all files that are a megabyte up to but not including a gigabyte. Show Sample Output

This prints out a list of all zombie processes PIDs so you can do things like kill the zombies Show Sample Output

Using egrep to search multiple patterns. Show Sample Output

This command sorts the content including hidden files in human readable format of the current directory. Show Sample Output