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

What the editor shares with you today is to use linux's tac command to list the contents of the file in reverse. I believe many people don't know much about it. In order to make you understand better, I summarized the following contents for you. Let's look down together. I'm sure you'll get something.

The tac command outputs the file in reverse, just the opposite of cat output.

Syntax format: tac [parameters] [file]

Common parameters:

-b add a separator before the line instead of at the end of the line-r parse the separator as a regular expression-s use the specified string instead of a newline as the delimiter-- version displays version information and exit-- help displays this help and exits

Reference example

List the contents of the test.txt file in reverse:

[root@linuxcool ~] # cat test.txt hello worldhello linuxcoolhello linuxprobe [root@linuxcool ~] # tac test.txt hello linuxprobehello linuxcoolhello world about using linux's tac command to reverse list the contents of the file is shared here. I hope the above content can be used as a reference for everyone. If you like this article, you might as well share it for more people to see.

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