Steps to Create the crontab :

First, Open the Terminal and log in with the root user. After that go to Magento Root Path then run the below command:

Output:

Crontab is created and saved.

Crontab is created and saved

NOTE: Use –force to rewrite an existing Magento crontab.

• magento cron:install does not rewrite an existing crontab inside #~ MAGENTO START and #~ MAGENTO END comments in crontab.
• magento cron:install –force does not affect any cron jobs outside Magento comments.

To check crontab List, run the below command:

Output:

Steps to Run cron from the command line

Log in with the root user in the terminal. Go to Magento Root Path After running the below command:

Output:

Ran jobs by schedule.

where –group defines the cron group to run (eliminate this alternative if you want to run cron for all groups)

To run the indexing cron job, enter:

To run the default cron job, enter:

Steps to Remove the Magento crontab:

First Open Terminal and login with the root user and go to Magento Root Path After running the below command :

Output:

Magento cron tasks have been removed

ometimes you need to issue reindex instantly. For that SSH/CLI method is more suitable. Here is what you need to do:

1. Log in to your store via SSH/CLI and navigate to the root of your store.
2. Run the following command: bin/magento indexer:reindex

You should see the following log, which shows, that reindex was successfully completed:

Design Config Grid index has been rebuilt successfully in 00:00:00
Customer Grid index has been rebuilt successfully in 00:00:00
Category Products index has been rebuilt successfully in 00:00:00
Product Categories index has been rebuilt successfully in 00:00:00
Product Price index has been rebuilt successfully in 00:00:01
Product EAV index has been rebuilt successfully in 00:00:01
Catalog Search index has been rebuilt successfully in 00:00:01
Stock index has been rebuilt successfully in 00:00:00
Catalog Rule Product index has been rebuilt successfully in 00:00:01
Catalog Product Rule index has been rebuilt successfully in 00:00:00