General syntax of an ad-hoc command: ```plaintext Command hostgroup module/options [arguments] ```

Function	Command
To check the connectivity of hosts	#ansible <group> -m ping
To reboot hosts	#ansible <group> -a “/bin/reboot”
To check the host system’s info	#ansible<group> -m setup \| less
To transfer files	#ansible <group> -m copy -a “src=home/ansible dest=/tmo/home”
To create a new user	#ansible<group> -m user -a “name=ansible password= <encrypted password>”
To delete a user	#ansible<group> -m user -a “name=ansible state- absent”
To check if a package is installed and to update it	#ansible<group> -m yum -a “name=httpd state=latest”
To check if a package is installed but not to update it	#ansible<group> -m yum -a “name=httpd state=present”
To check if a package is of a specific version	#ansible<group> -m yum -a “name=httpd-1.8 state=latest”
To check if a package is not installed	#ansible <group> -m yum -a “name= httpd state= absent
To start a service	#ansible<group> -m service -a “name= httpd state=”started”
To stop a service	#ansible<group> -m service -a “name= httpd state=”stopped”
To restart a service	#ansible<group> -m service -a “name= httpd state=”restarted”

The general syntax of an ad-hoc command: ```plaintext Command hostgroup module/options [arguments] ```

Function	Command
To check the connectivity of hosts	#ansible <group> -m ping
To reboot hosts	#ansible <group> -a “/bin/reboot”
To check the host system’s info	#ansible<group> -m setup \| less
To transfer files	#ansible <group> -m copy -a “src=home/ansible dest=/tmo/home”
To create a new user	#ansible<group> -m user -a “name=ansible password= <encrypted password>”
To delete a user	#ansible<group> -m user -a “name=ansible state- absent”
To check if a package is installed and to update it	#ansible<group> -m yum -a “name=httpd state=latest”
To check if a package is installed but not to update it	#ansible<group> -m yum -a “name=httpd state=present”
To check if a package is of a specific version	#ansible<group> -m yum -a “name=httpd-1.8 state=latest”
To check if a package is not installed	#ansible <group> -m yum -a “name= httpd state= absent
To start a service	#ansible<group> -m service -a “name= httpd state=”started”
To stop a service	#ansible<group> -m service -a “name= httpd state=”stopped”
To restart a service	#ansible<group> -m service -a “name= httpd state=”restarted”

Environment Setup