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PROBLEM: It is difficult to copy and past outputs from and to terminal SOLUTION: Use xclip! Install xclip To install xclip on Ubuntu just use apt get, on other use the equivalent command.

Basic commands To copy output to your clipboard, just simply use | xclip (| means, everything before pipe is input for command after pipe)like this:

And you have content of myfile in your clipboard! To paste from your clipboard, just use:

Advanced strategy! To work…

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To see log output from running service just simply type

Where you can find running services using:

PROBLEM: After 2nd factor activation on Gitlab, username and password auth is not working anymore SOLUTION: Generate API key and use modified url Generate your API key on Gitlab You can find this option in Preferences > Access Tokens Copy this token and note you will see it only once (you have to generate a new one if the old is lost) Create new URL

So if you would like to push or clone the repo using e.g. git…

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Git basics Simple instruction how to handle git on the command line Check if Git is installed and ready

If not, you can install git using (on Ubuntu)

Set username and email Every commit is marked with username and email to identify the autor

You can check the informations using

(1) Initialize a local directory for Git If you want to include your local directory to version control, use init to tell Git what to track…

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PROBLEM: I cannot open some folders or use them properly. SOLUTION: Change ownership of the file. For single files

For directory

For changing owner and group

or

PROBLEM: I need to change password, but I do not remember the old one. SOLUTION: Simple one line command saves the day!

And yes, you have to be logged as root or be able to use sudo.

PROBLEM: I would like to backup files to the cloud. SOLUTION: Pick Backblaze B2 with awesome pricing. 1.0 Create Application Key Using official guide – https://help.backblaze.com/…Account-ID-and-Application-Key Backblaze has a very easy and intuitive interface, so I bet you don’t need any guide to do it 🙂 2.0 Connection String

You should substitute real keys with variables, just to make the string more flexible. E.g.:

3.0 – Duplicity 3.1 Backup Using Duplicity to Backblaze is very simple! You just need to generate…

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PROBLEM: Need to keep keys to be able restore backups later. SOLUTION: Simple export keys and save where you want to. 1.0 – Export Use gpg –list-keys to show all keys

My only key is myFavKey, so I will export this one using

And there you go! Yyou should both files export to same safe place 🙂 2.0 – Import Copy both files to server where you would like to restore files and import both keys.

And…

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PROBLEM: I would like to change root password on a fresh new install. SOLUTION: Simple one command! Run command below to switch to root:

Change password by typing:

And type new root password. Done!