HowTos

Intro When you spend a lot of time googling or reading documentation  trying to find a solution for some unexpected task and, at the end, it's startworking, you says "WOW! Now then I will use it next time!" But after few months you get the same task and... start from scratch. So I started writing  Tips and Tricks for every Network OS (Juniper, Cisco , Huawei etc.) in my notes.  After few years I decided to start publish my own collection. Hope it will help me and may be someone else to solve a problem in the future. Some of them are from Day One collection, some from my  everyday tasks.  Enjoy.

Linux is an amazing OS because you can do a lot inside it. Here is a bunch of Tips & Tricks I have found. Find the current time in the timezone you want: $ TZ='America/Los_Angeles' date Tue Dec 11 04:07:18 PST 2018 $ TZ='Europe/London' date Tue Dec 11 12:08:49 GMT 2018 Note: All available timezones can be found at /usr/share/zoneinfo. I recommend to view it using timedatectl list-timezones command. $ timedatectl list-timezones | grep Europe Generate random password string using  date and md5sum or sha256sum $ date | sha256sum | base64 | head -c 8 ; echo Y2RhODhh $ date | md5sum | base64 | head -c 8 ; echo YWNjYzU4 Generate pseudo-random string using OpenSSL  $ openssl rand -hex 8 d0388693bd744e0e $ openssl rand -base64 32 | head -c 12  ; echo uvics5KjODkt Generate random password string using gpg utility $ gpg --gen-random --armor 1 12