The mail command is used in combination with the pipeline command statement

Operating environment ：

OS: CentOS Linux release 7.9.2009 (Core)

Practical task ： Send email interactively , At the same time, combined with pipeline command statements , Put the edited content with the title “ pack ”, Finally, a command is used to send the email .

Log in and copy

      
      

       
       [[email protected] ~]
       
       # yum install mailx
       
       
[[email protected] ~]
       
       # vi /etc/mail.rc
       
       

       
       set bsdcompat
       
       

       
       set 
       
       from
       
       =***@163.com     
       
       # Mailing address 
       
       

       
       set 
       
       smtp
       
       =smtp.163.com    
       
       # Send mail server 
       
       

       
       set 
       
       smtp-auth-user
       
       =***@163.com    
       
       # account number 
       
       

       
       set 
       
       smtp-auth-password
       
       =******     
       
       # Application authorization code 
       
       

       
       set 
       
       smtp-auth
       
       =login    
       
       # Mail authentication method 
       
       

       
       
[[email protected] ~]
       
       # yum install sendmail
       
       

       
       
[[email protected] ~]
       
       # systemctl start sendmail.service
       
       

       
       # Use pipe sign sentences 
       
       
[[email protected] ~]
       
       # echo "Content" | mail -S "Subject" ***@163.com
       
       
Non-null variable name required
       
       
Could not resolve host: 
       
       

       
       "/root/dead.letter" 
       
       10/277
       
       
. . . message not sent.
       
       

       
       # The above error , The main reason is “=” There are spaces in the symbol 
       
       

       
       set smtp  
       
       =  smtp.163.com
      
      
      
      

       
       
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Summary ： Do the above experiments , There are two main steps ： First, install and configure mailx、sendmail service ; secondly , To be in 163 Email application to open related services , At the same time, get the authorization code .