Scheduling and Automation

Question 1

What is the command to list all the crontab?

Answer 1

crontab -l

Question 2

What is the command to edit crontab?

Answer 2

crontab -e

Question 3

How are crontab formated?

Answer 3

1) Minute
2) Hour
3) Day of the month
4) Month
5) Day of the week
6) Command to execute

Question 4

What is the command to remove the crontab (erase it)?

Answer 4

crontab -r

Question 5

What is the absolute path where we can write a new service?

Answer 5

/lib/systemd/system/

Question 6

How do I set the description of a service with systemd?

Answer 6

Description=

Question 7

How do I set the description of a trigger with systemd?

Answer 7

After=

Question 8

How do I set the trigger for when the environment is available?

Answer 8

After=multi-user.target

Question 9

How do I set the command i want to start with in systemd?

Answer 9

ExecStart=

Question 10

How do I set the user of the command i want to start with systemd?

Answer 10

User=

Question 11

What is the command to list all the services?

Answer 11

systemctl list-unit-files

Question 12

What is the command to enable a service?

Answer 12

systemctl enable [service name]

Question 13

What is the command to disable a service?

Answer 13

systemctl disable [service name]

Question 14

What is the command to start a service?

Answer 14

systemctl start [service name]

Question 15

What is the command to stop a service?

Answer 15

systemctl stop [service name]