a.mosallaei's questions

So this is in addendum to my question posed here. Thank you to @dessert who helped a lot with that question.

So I am trying to authenticate a Gitlab user by using their username and password, and not by creating an impersonation token. At the moment, the code that @dessert has created that uses an impersonation token to authenticate a user is as such:

$ curl -d '{"title":"test key","key":"'"$(cat ~/.ssh/id_rsa.pub)"'"}' -H 'Content-Type: application/json' https://gitlab.com/api/v4/user/keys?private_token=<my_access_token>

Mainly focusing on the `private_token=, except with the creation of an impersonation token found here

$ curl --request POST --header "PRIVATE-TOKEN: <your_access_token>" --data "name=mytoken" --data "expires_at=2017-04-04" --data "scopes[]=api" https://gitlab.example.com/api/v4/users/42/impersonation_tokens

I want to be able to use the username and password of the Gitlab user to authenticate them. I've seen this done with Github, and have done it myself:

$ curl -u "USERNAME:PASSWORD" --data "{\"title\": \"TITLE\", \"key\": \"$(cat ~/.ssh/id_rsa.pub)\"}" https://api.github.com/user/keys

Where USERNAME and PASSWORD are authenticating by user-inputted username and password.

I don't need help with reading input of the user; that's not the issue. My issue (to sum up) is to be able to authenticate a Gitlab user through their username and password.

Again, thanks to @dessert for the help, and any other assistance is appreciated!!

A quick edit: I found this forum post for authentication with login and password, and most are saying to use a Personal Access Token. Does this mean I have to get the user to give me their PAT for authentication? Or do I provide my PAT and somehow it does something? (I was a little unclear on this)

I am creating a bash executable, which creates an SSH key, and uploads it to a user's Gitlab account. I am aware of how to create the SSH key via the bash executable:

ssh-keygen -o -f ~/.ssh/id_rsa

and I also know how to retrieve from it, however I don't know how to upload it to a user's Gitlab account.

I have found multiple documentations for uploading a user's SSH to Github however not Gitlab (I assume mostly similar...?). So I would use this for Github

curl -u "USERNAME:PASSWORD" --data "{\"title\": \"TITLE\", \"key\": \"$(cat ~/.ssh/id_rsa.pub)\"}" https://api.github.com/user/keys

and I would make USERNAME, PASSWORD, and TITLE input fields for the user to customize.

I want to say that it would be as simple for Gitlab (I found POST /users/:id/keys on their API site, but don't know how to implement it as a curl command), but I don't know how closely related Gitlab and Github are.

I know I am asking questions a bit close together, but I can't seem to figure this out.

I have the following code:

currentver="$(lsb_release -rs)"
requiredver="18.04"
if ["$(printf '%s\n' "$requiredver" "$currentver" | sort -V | head - n1)" = "$requiredver"]
then 
    read -p "Ubuntu?: " vari
else
    read -p 'Hello?: ' var
fi  

However, I always get this error: ./test.sh: line 3: [18.04: command not found. I've tried comparing currentver with 18.04 as comparing numbers, I've tried comparing them as strings, but nothing seems to work!

Any help is (as always) greatly appreciated.

So I am trying to create a bash/executable, and it in I need to know the version number of Ubuntu on the system. All the ways I have found online consist of lsb_release -r, however I cannot output this into a variable.

Is there any way to get the current version of Ubuntu and save as a variable in a shell executable?