Variety of shell script in installing phpMyAdmin

[joon1]

As googling, I found the following for installation of phpMyAdmin.on LAMP.

(1) $ sudo apt-get install phpmyadmin

(2) $ sudo apt-get install -y phpmyadmin

Which one is the correct way in installing phpMyAdmin?
What is difference between (1) without -y and (2) with -y?
What does it mean by “y”?

[spaceshiptrooper]

The -y flag is just for agreeing to everything. It just means “yes” in a way. It’s for lazy people like me when I don’t want to read through all of the agreements. -y isn’t specific for phpMyAdmin or a specific package. It’s a *NIX flag typically for bypassing confirmations such as “Press the enter key or type in yes if you want to continue” screens.

[John_Betong]

@joon1

Which one is the correct way in installing phpMyAdmin?

DigitalOcean has a Tutorial that I think I followed to install PhpMyAdmin: (other versions are available)

How To Install and Secure phpMyAdmin on Ubuntu 18.04 | DigitalOcean

An earlier version had problems which showed an error after every query and required confirmation to ignore in order to proceed. The error cleared when I installed from PhpMyAdmin site.

[joon1]

@spaceshiptrooper

The -y flag is just for agreeing to everything. It just means “yes” in a way. It’s for lazy people like me when I don’t want to read through all of the agreements. -y isn’t specific for phpMyAdmin or a specific package. It’s a *NIX flag typically for bypassing confirmations such as “Press the enter key or type in yes if you want to continue” screens.

Do you mean the following?

During installation process, “(1) without -y” will ask “Press the enter key or type in yes?” .
During installation process, “(2) with -y” will not ask “Press the enter key or type in yes?”.

[John_Betong]

@joon1

sudo apt-get install phpmyadmin

It would help to know the Operating System and Version of the LAMP Installation.

Example of NOT using -Y

I use Ubuntu 19.10 and CTRL-ALT-T brings up the Gnome Terminal.

1. Typing CTRL-R pg searches the History command
2. Repeatedly pressing CTRL-R until the following History command is found if it has been previously entered.
3. Pressing ENTER activates the command
4. Saves a lot of typing

sudo apt update && sudo apt upgrade

Output:

…
// checks packages required to upgrade
// example
Get:26 http://es-mirrors.evowise.com/ubuntu eoan/multiverse DEP-11 48x48 Icons [7,666 B]
Get:27 http://es-mirrors.evowise.com/ubuntu eoan/multiverse DEP-11 64x64 Icons [217 kB]
…
The following packages will be upgraded:
…
// package names shown here
…
76 to upgrade, 9 to newly install, 0 to remove and 0 not to upgrade.
Need to get 185 MB of archives.
After this operation, 359 MB of additional disk space will be used.
Do you want to continue? [Y/n]

Pressing y starts the download, install, upgrade commands.

This took about ten minutes. (Normally there are not a lot of packages to install/upgrade and the operation takes less than a minute, unfortunately this is the Resource Candidate version.)

That’s it until another CTRL-ALT-T and CTRL-R tomorrow

[rpkamp]

What is difference between (1) without -y and (2) with -y?

Whenever you wonder what a command on Linux will do, you can consult the manual with the command man. For apt-get that would be:

man apt-get

This will show you an explanation of what the command is for, and list all options and what they do. In this case, for -y it lists:

-y, --yes, --assume-yes
Automatic yes to prompts. Assume "yes" as answer to all prompts and run non-interactively. If an undesirable situation, such as changing a held package or removing an essential package, occurs then apt-get will abort.

When you don’t like reading from the command line, there is also a website that has a lot of these man pages, just typing man apt-get in google will also take you there: https://linux.die.net/man/8/apt-get

[James_Hibbard]

@joon1

What is difference between (1) without -y and (2) with -y?

Also, this is the sort of thing you can ask Google. Searching for “apt-get y flag” gives you this as a first result.

What does -y mean in apt-get -y install command?

[spaceshiptrooper]

Without -y, it’ll prompt you to type in “yes” or “y” every time there’s a screen that requires confirmation. -y bypasses all of those confirmations. So there shouldn’t be any lines asking you to press enter or typing “yes” into the terminal.