“You have mail” – How to Read Mail in Linux Command Line

Иногда при входе в систему часто спрашивают У вас новая почта в / var / spool / mail / root

Вы находите это раздражающим — решение: измените файл конфигурации системы / etc / profile, запретите системе проверять почтовый ящик.

Просто измените MailTo на адрес человека, которого вы хотите доставить.

Полученное письмо делится на:
Именованный (некоторые несвязанные объекты)
pam_unix (некоторые объекты проверки, например sshd)

sendmail
sendmail-largeboxes (большой файл спула почты)
SSHD (номер sshd, следующая описательная информация)
Дисковое пространство (подключение, использование пространства) и другая информация

Статья перенесена из блога boy461205160 51CTO, оригинальная ссылка: http://blog.51cto.com/461205160/1725604

echo "biff y" >> ~/.profile

echo <<EOF>> ~/.profile
eval $(stat -s /var/mail/$USER)
test $st_size -eq 0 && echo You have mail
EOF

echo "XTerm*loginShell: true" >> ~/.Xdefaults
xrdb -merge ~/.Xdefaults

echo "*loginShell: true" >> ~/XTerm

man login
After a successful login, you will be informed of any system messages and the presence of mail. You may turn off the printing of the system message file, /etc/motd, by creating a zero-length file .hushlogin in your login directory. The mail message will be one of "You have new mail.", "You have mail.", or "No Mail." according to the condition of your mailbox.
Читать:
mutt или mail

How does CentOS 7 shut down a prompt (You have new mail in / var / spool / mail / root)

• 1, problem description

  [[email protected]/etc/yum.repos.d]# rpm -qa vim
  You have new mail in /var/spool/mail/root After the blogger logs in to the system, prepare to check the Vim and then build the service, but it suddenly gave a prompt, translated That is, "You have a new email, in the XX directory"

• This problem is currently I found on Centos 7, after viewing information, Found it is a function of checking system resources for Linux systems. By default, in the ROOT user / var / spool / mail / root directory Mainly record system resources or important error tips

• 1. What is wrong? Use the MUTT command to view if you do not use a CAT command, or install MUTT cat /var/spool/mail/root 2. If you don't want to be prompted, how to close 3. After we see, discovery is time synchronization problem, I have no problem directly to synchronize, and write a plan service.
  [[email protected]/etc/yum.repos.d]# ntpdate ntp.aliyun.com
  [[email protected]/etc/yum.repos.d]# 

• 

• About this, can we close this prompt? The answer is of course, Then what do we need to turn off? 2 commands are closed:
  echo "unset MAILCHECK" >> /etc/profile
  source /etc/profile

Intelligent Recommendation

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<code>cat /var/spool/mail/root</code>

From [email protected] Wed Jul 29 12:05:26 2015
Return-Path: <[email protected]>
Received: from hostname (localhost [127.0.0.1])
by hostname (8.14.4/8.14.4/Debian-4.1ubuntu1) with ESMTP id t6TG5QKu001540
for <[email protected]>; Wed, 29 Jul 2015 12:05:26 -0400
Received: (from [email protected])
by hostname (8.14.4/8.14.4/Submit) id t6TG5QYK001533;
Wed, 29 Jul 2015 12:05:26 -0400
Date: Wed, 29 Jul 2015 12:05:26 -0400
Message-Id: <[email protected]>
To: [email protected]From: [email protected]Auto-Submitted: auto-generated
Subject: *** SECURITY information for hostname ***
hostname: Jul 29 12:05:26 : root : unable to resolve host hostname

 /var/mail/

sudo less /var/mail/username_here

 rm /var/mail/

mail

mail
"/var/mail/john": 6 messages 6 new
>N 1 Mail Delivery Syst Thu Feb 15 21:12 80/2987 Undelivered Mail Returned to Sender N 2 Mail Delivery Syst Fri Feb 16 00:09 71/2266 Undelivered Mail Returned to Sender N 3 Mail Delivery Syst Fri Feb 16 00:16 71/2266 Undelivered Mail Returned to Sender N 4 Mail Delivery Syst Fri Feb 16 00:21 71/2266 Undelivered Mail Returned to Sender N 5 Mail Delivery Syst Fri Feb 16 00:22 71/2266 Undelivered Mail Returned to Sender N 6 Mail Delivery Syst Fri Feb 16 00:24 75/2668 Undelivered Mail Returned to Sender
?

cat /var/spool/mail/root

From [email protected] Wed Jul 29 12:05:26 2015
Return-Path:
Received: from hostname (localhost [127.0.0.1])
by hostname (8.14.4/8.14.4/Debian-4.1ubuntu1) with ESMTP id t6TG5QKu001540
for ; Wed, 29 Jul 2015 12:05:26 -0400
Received: (from [email protected])
by hostname (8.14.4/8.14.4/Submit) id t6TG5QYK001533;
Wed, 29 Jul 2015 12:05:26 -0400
Date: Wed, 29 Jul 2015 12:05:26 -0400
Message-Id: <[email protected]>
To: [email protected]From: [email protected]Auto-Submitted: auto-generated
Subject: *** SECURITY information for hostname *** 
hostname: Jul 29 12:05:26 : root : unable to resolve host hostname

[email protected]:~# > /var/spool/mail/root

Solution 2

crontab -e

and add output to your cron jobs. If you want to disable emails for just one cron job, you will need to redirect its output to

/dev/null by adding > /dev/null 2>&1 

at the end of the line. For example:

* * * * */5 /path/to/command arguments > /dev/null 2>&1

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Grabbing the directory path in a message like «You have new mail in /var/spool/mail/root»

Comments

• You have mail in /var/spool/mail/root.

  Can someone tell me what does this mean?

  • Have you tried reading it to find out what it says? Usually it is related to cron jobs or some system report.

  • yes, I opened the file so many things are there. some line is in reference with the cron jobs I have added 🙂

• There are often a reason for cron jobs to output, redirecting it to /dev/null makes it impossible to dig into them at a later state. It would be better to use mali/mailx to read them an delete them after that.

• Or install mailutils: sudo apt install mailutils to get the mailx command whare you can read, save and delete mails in /var/mail.

Solution 1

A task has run on your machine that had some output, but had nowhere to leave it. So it sent you an email. Because there is no full email system on your machine either, all it could do was to write a message in /var/spool/mail/root.

sudo less /var/spool/mail/root