Displaying the start of file in CentOS Linux

Head command is used to display the first few lines of a file.

• The default number of lines displayed is 10

SYNOPSIS:

head filename(s)

head -n filename(s)

Note:

-n option refer to number of lines that you want to display

Scenario A

In the following example, the head command (without using any option) will displaying the first 10 lines of the mail.log

head mail.log

Scenario B

In the following example,  the head -20 will displaying the first 20 lines of mail.log

head -20 mail.log

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