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lsb_release -h

FSG lsb_release v1.4 prints certain LSB (Linux Standard Base) and 
Distribution information. 
 
Usage: lsb_release [OPTION]... 
With no OPTION specified it is the same as -v. 
 
Options: 
  -v, --version 
  Display the version of the LSB specification against which the distribution is compliant. 
  -i, --id 
  Display the string id of the distributor. 
  -d, --description 
  Display the single line text description of the distribution. 
  -r, --release 
  Display the release number of the distribution. 
  -c, --codename 
  Display the codename according to the distribution release. 
  -a, --all 
  Display all of the above information. 
  -s, --short 
  Display all of the above information in short output format. 
  -h, --help 
  Display this message.

lsb_release -a

LSB Version:  n/a 
Distributor ID: ManjaroLinux 
Description:  Manjaro Linux 
Release:  21.0.2 
Codename:   Ornara

uname -a 
Linux manjaro 5.11.14-1-MANJARO #1 SMP PREEMPT Wed Apr 14 08:25:29 UTC 2021 x86_64 GNU/Linux

cat /proc/version 
Linux version 5.11.14-1-MANJARO (builduser@LEGION) (gcc (GCC) 10.2.0, GNU ld (GNU Binutils) 2.36.1) #1 SMP PREEMPT Wed Apr 14 08:25:29 UTC 2021