Detailed explanation of how to use the mail command mail in CentOS

1.Basic syntax of mail

h|headers Display the current mailing list

l|list displays the currently supported command list

?|help Display the usage of command parameters for multiple viewing mailing lists

d Delete the current email and move the pointer down. d 1-100 Delete emails 1 to 100

t|type|more|p|page num Read a certain email

n|next|{Fill in nothing} Read the content of the next email where the current pointer is; when reading, press the space bar to turn the page, and press the Enter key to move down one line

n|next|{Fill in nothing} num Read a certain email

f|from num View email header

top Display the email header of the email where the current pointer is located

file|folder displays the entire user email storage path and the number of emails

mail Write an email. After editing the text, press the Ctrl D key or the . key to end the text

q Exit

2. Email storage location:

/var/spool/mail/username

3. Three ways to send emails:

1). Standard input input email content:

mail -s "title" username@domain.c

Press Ctrl D key or . key to end the text

2).Pipeline method

echo “mail content”|mail -s “title” username@domain.c

cat somefile |mail-s "title" username@domain.c

3).File redirection method

mail -s "title" username@domain.c < file

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