Karan Kaw's Blog: May 2021

Monday, May 31, 2021

[root@az-cvs-li-re-001 rage]# chmod ugo+rwx test

[root@az-cvs-li-re-001 rage]# ls -l|grep test

drwxrwxrwx 2 root root 6 Jun 1 09:53 test

[root@az-cvs-li-re-001 rage]# chmod u+rwx,g-rwx,o+rw-x test

[root@az-cvs-li-re-001 rage]# ls -l|grep test

drwx---rw- 2 root root 6 Jun 1 09:53 test

-----------------------------------------------------------------------------------------------

https://phoenixnap.com/kb/linux-chown-command-with-examples

chown [OPTIONS] USER[:GROUP] FILE(s)

[OPTIONS] – the command can be used with or without additional options.

[USER] – the username or the numeric user ID of the new owner of a file.

[:] – use the colon when changing a group of a file.

[GROUP] – changing the group ownership of a file is optional.

FILE – the target file.

[rage@az-cvs-li-re-001 ~]$ ls -la test

total 4

drwx---rw- 2 rage root 6 Jun 1 09:53 .

drwx------. 36 rage rage 4096 Jun 1 09:53 ..

[rage@az-cvs-li-re-001 ~]$ chown :rage test

[rage@az-cvs-li-re-001 ~]$ ls -la test

total 4

drwx---rw- 2 rage rage 6 Jun 1 09:53 .

drwx------. 36 rage rage 4096 Jun 1 09:53 ..

Friday, May 28, 2021

Full YAML Tutorial - Nested Array - Nested JSON

https://codebeautify.org/yaml-to-json-xml-csv/cb162ac2?restoreDataAfter=true [VImp]

https://www.cloudbees.com/blog/yaml-tutorial-everything-you-need-get-started/

https://www.json2yaml.com/

Array, List, Map, Scalar, Boolean , Number
Quotes are optional
It automatically converts Data type to Boolean, String
List has dash followed by space

--- 3 Dash means separate YAML Document
Multiline with Formatting Preserved - Use Pipe |
Multiline with Formatting Ignored - Use Redirection Operator >

Chomp Modifiers

Multiline values may end with whitespace, and depending on how you want the document to be processed you might not want to preserve it. YAML has the strip chomp and preserve chomp operators. To save the last character, add a plus to the fold or block operators.

friends:
    - Karan
    - Sahil
    - Ashish
    - Rahul
    - GodGoddess:
        Brahma: Saraswati
        Vishnu: Lakshmi
        Mahesh: Parvati
school: Model Academy
place: Jammu
VitalStats:
    Length: 5 Foot
    Attributes:
        - Black Complexion
        - Tall
        - curly Hair
        - Intelligence:
            IQ: 150
            EQ: 100
        - Hobbies: [Hollywood, "Pranks", "Comics"]
LongStringNoFormatting: |
    All right!
    Okay!
    Fine!
LongStringPreseveFormatting: >
    All right!
    Okay!
    Fine!

{
  "array": [
    {
      "description": "work"
    },
    "Hola",
    123,
    [
      "karan",
      "sumit"
    ],
    {
      "description": "work",
      "URL": "https://www.digitalocean.com/"
    },
    [
      {
        "description": "work",
        "URL": "https://www.digitalocean.com/"
      }
    ],
    [
      {
        "desciption": "tutorials"
      },
      {
        "URL": "www.digitalocean.com"
      }
    ]
  ]
}

---

array:
- description: work
- Hola
- 123
- - karan
  - sumit
- description: work
  URL: https://www.digitalocean.com/
- - description: work
    URL: https://www.digitalocean.com/
- - desciption: tutorials
  - URL: www.digitalocean.com

Monday, May 24, 2021

My Inventions - Nikola Tesla

http://www.tfcbooks.com/special/mi_link.htm

Sunday, May 23, 2021

Useful URLS - Linux - 24 May 2021

http://localhost:4200/programmaticRoute/relative

https://stackblitz.com/edit/kk-angular-gen-project?file=src%2Fapp%2Fcomponents%2Fannotator-dashboard%2Fannotator-dashboard.component.spec.ts

https://www.netjstech.com/2020/08/navigate-route-programmatically-angular.html

https://angular.io/guide/router

https://www.digitalocean.com/community/tutorials/angular-query-parameters

https://serverfault.com/questions/62026/how-to-know-from-which-yum-repository-a-package-has-been-installed

https://www.google.com/search?q=remove+bash+history&rlz=1C1GCEA_enIN943IN943&oq=remove+bash&aqs=chrome.2.0j69i57j0l2j0i20i263j0l5.5872j0j7&sourceid=chrome&ie=UTF-8

https://phoenixnap.com/kb/how-to-create-sudo-user-on-ubuntu

https://devconnected.com/how-to-add-user-to-sudoers-on-ubuntu-20-04/

https://www.geeksforgeeks.org/passwd-command-in-linux-with-examples/

https://linuxize.com/post/usermod-command-in-linux/

https://www.differencebetween.com/difference-between-adduser-and-vs-useradd/#:~:text=The%20difference%20between%20adduser%20and%20useradd%20is%20that%20adduser%20is,utility%20command%20to%20add%20users.

https://www.howtogeek.com/50787/add-a-user-to-a-group-or-second-group-on-linux/#:~:text=To%20add%20an%20existing%20user,user%20you%20want%20to%20add.

https://linuxize.com/post/how-to-list-users-in-linux/

https://linuxize.com/post/how-to-list-groups-in-linux/

https://www.ibm.com/docs/en/ibm-mq/9.1?topic=windows-creating-managing-groups-linux

https://linuxize.com/post/how-to-add-user-to-group-in-linux/

https://www.networkworld.com/article/3409781/mastering-user-groups-on-linux.html#:~:text=There%20are%20actually%20two%20types,an%20account%20is%20set%20up.&text=Secondary%20groups%20are%20those%20that,the%20%2Fetc%2Fgroup%20file.

https://linuxize.com/post/how-to-delete-users-in-linux-using-the-userdel-command/

https://www.cyberciti.biz/faq/linux-list-users-command/

https://www.ibm.com/docs/en/aix/7.2?topic=passwords-using-etcpasswd-file

https://www.cyberciti.biz/faq/understanding-etcpasswd-file-format/

https://www.cyberciti.biz/faq/understanding-etcgroup-file/

https://www.digitalocean.com/community/tutorials/how-to-view-system-users-in-linux-on-ubuntu#:~:text=Every%20user%20on%20a%20Linux,line%20describes%20a%20distinct%20user.

https://www.cyberciti.biz/faq/how-to-delete-group-in-linux-using-groupdel-command/

https://www.journaldev.com/39787/linux-delete-group-groupdel-command

https://www.howtogeek.com/50787/add-a-user-to-a-group-or-second-group-on-linux/

https://linuxize.com/post/how-to-create-groups-in-linux/#:~:text=To%20create%20a%20new%20group,by%20the%20new%20group%20name.&text=The%20command%20adds%20an%20entry,adding%20users%20to%20the%20group%20.

https://linuxize.com/post/linux-chown-command/

https://www.baeldung.com/linux/chown-chmod-permissions

https://www.tecmint.com/add-users-in-linux/#:~:text=To%20create%20user's%20without%20their,shilpi'%20without%20a%20home%20directory.

https://www.tecmint.com/delete-remove-a-user-account-with-home-directory-in-linux/

https://phoenixnap.com/kb/fix-connection-reset-by-peer-ssh-error

https://devconnected.com/how-to-list-users-and-groups-on-linux/#:~:text=In%20order%20to%20list%20users,navigate%20within%20the%20username%20list.

https://phoenixnap.com/kb/grep-multiple-strings

https://unix.stackexchange.com/questions/106593/what-do-the-characters-y-d-n-mean

https://stackoverflow.com/questions/305035/how-to-use-ssh-to-run-a-local-shell-script-on-a-remote-machine

https://unix.stackexchange.com/questions/115917/why-is-bash-not-storing-commands-that-start-with-spaces

Microsoft Windows Terminal - Multiple Tabs Console

Download Links

https://github.com/microsoft/terminal/releases/tag/v1.8.1092.0

https://github.com/microsoft/terminal#readme

Alternate Download URL

https://www.microsoft.com/en-us/p/windows-terminal/9n0dx20hk701?activetab=pivot:overviewtab

https://helpdeskgeek.com/how-to/use-multiple-tabs-in-the-windows-command-prompt/

5 Software Utilities

Tuesday, May 18, 2021

@Media , Transition, CSS Property

<!DOCTYPE html>
<html>
<head>
<style> 

div {
  width: 100px;
  height: 100px;
  background: green;
  transition: background 0s, width 3s;
}

@media screen and (max-width : 600px){
  div {
      width: 100px;
      height: 100px;
      background: cyan;
  }
}

div:hover {
  width: 300px;
  background:yellow;
  transform:rotate(10deg)
}
</style>
</head>
<body>

<h1>The transition Property</h1>

<p>Hover over the div element below, to see the transition effect:</p>
<div>Golu</div>

<p><b>Note:</b> This example does not work in Internet Explorer 9 and earlier versions.</p>

</body>
</html>

Transform CSS Property

<!DOCTYPE html>
<html>
<head>
<style> 
  div.a {
     width: 150px;
     height: 80px;
     background-color: yellow;
     //-moz-transform: rotate(20deg);
     //-ms-transform: rotate(20deg);
     -webkit-transform: rotate(20deg);
     //transform: rotate(20deg);
  }
</style>
</head>
<body>
<h1>The transform Property</h1>
<div class="a">Hello World!</div>
</body>
</html>

Karan Kaw's Blog