Shulou(Shulou.com)06/02 Report--

The main function of cat is to connect and display the contents of the file. You can follow multiple files to be displayed later.

Common options:

-n: displays the line number

-E: displays the Terminator. Line Terminator under Linux is $(\ n), line Terminator under windows is ^ M (\ r\ n)

Example:

[root@vm1 ~] # cat-n / etc/issue 1CentOS release 6.5 (Final) 2Kernel\ r on an\ m 3 [root@vm1] # [root@vm1 ~] # cat-E / etc/issueCentOS release 6.5 (Final) $Kernel\ r on an\ etc/issueCentOS release $[root@vm1 ~] #

The newline character of Windows is converted to the newline character of Linux: dos2unix

The newline character of Linux is converted to the newline character of Windows: unix2dos

The package needs to be installed:

Yum install-y dos2unix unix2dos

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