rev command in Linux with example

In this tutorial, How do I use the rev command used to reverse the character of the line in LinuxLinux the essential for DevOps Roles. Now, let’s rev command in Linux.

The syntax rev command in Linux

rev [option] [file...]

On the man page, the describes it

  • rev – reverse lines characterwise.
  • man rev – More details information about rev command.
rev command in Linux with example

For example

Use rev command reverses the output of hostname command as below

[root@ip-10-0-0-236 ~]# hostname
ip-10-0-0-236.us-east-2.compute.internal
[root@ip-10-0-0-236 ~]# hostname | rev
lanretni.etupmoc.2-tsae-su.632-0-0-01-pi
[root@ip-10-0-0-236 ~]#

How to get 8 last character use combine rev command and cut command 🙂

[root@ip-10-0-0-236 ~]# hostname
ip-10-0-0-236.us-east-2.compute.internal
[root@ip-10-0-0-236 ~]# hostname | rev | cut -b 1-8 | rev
internal

Sorting File Lines by Last Character

[ec2-user@ip-172-31-45-95 ~]$ cat domain.txt
devopsroles.com
abc.xyz
huuphan.com

[ec2-user@ip-172-31-45-95 ~]$ cat domain.txt  | rev | sort | rev
huuphan.com
devopsroles.com
abc.xyz

Conclusion

Through the article, you can use rev command examples in Linux as above. I hope will this your helpful. rev Command – Reverse Order of Characters on Command-Line. Thank you for reading the DevopsRoles page!

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About HuuPV

My name is Huu. I love technology and especially Devops Skill such as Docker, vagrant, git so forth. I likes open-sources. so I created DevopsRoles.com site to share the knowledge that I have learned. My Job: IT system administrator. Hobbies: summoners war game, gossip.
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