The alias command allows you to create command shortcuts within your shell. Below shows you how,
move to your home directory,
[root@localhost ~]# cd ~
add the alias of os which will show the output of ‘uname -a’
[root@localhost ~]# cat >> .bash_profile
[root@localhost ~]# alias os=’uname -a’
Reload you environment variables for your new alias to take effect
[root@localhost ~]# . .bash_profile
Test your new alias
[root@localhost ~]# os
Linux localhost.localdomain 2.6.18-92.1.6.el5PAE #1 SMP Fri Jun 20 02:51:01 EDT 2008 i686 i686 i386 GNU/Linux
Rick Donato is a Network Automation Architect/Evangelist and the founder of Packet Coders.
Latest posts by Rick Donato (see all)
- NETCONF & YANG: Automate Network Configs via Python - April 2, 2026
- Palo Alto – How to Configure Your Next-Generation Firewall - April 2, 2026
- How to Harden Linux SSH: Keys, Fail2ban & Ciphers - March 1, 2026
Want to become a Linux expert ?
Here is our hand-picked selection of the best courses you can find online:
Linux Mastery course
Linux Administration Bootcamp
and our recommended certification practice exams:
Delta Practice Tests