Every time you want to see how many bits of the system, always remember which command to use, so make a summary.
[Email protected]:~$
lsb_release-a
No LSB modules is available.
Distributor Id:ubuntu
Description:ubuntu 12.04.4 LTS
release:12.04
Codename:precise
[Email protected]:~$
uname-a
Linux de16-c6100 3.11.0-15-generic #25 ~precise1-ubuntu SMP Thu Jan 17:39:31 UTC x86_64x86_64x86_64 Gnu/linux
[Email protected]:~$
Cat/etc/lsb-release
Distrib_id=ubuntu
distrib_release=12.04
Distrib_codename=precise
distrib_description= "Ubuntu 12.04.4 LTS"
[Email protected]:~$ cat/etc/issue
Ubuntu 12.04.4 LTS \ \l
[Email protected]:~$
cat/proc/version
Linux version 3.11.0-15-generic ([email protected]) (GCC version 4.6.3 (Ubuntu/linaro 4.6.3-1ubuntu5)) #25 ~precise1-ubun Tu SMP Thu Jan 17:39:31 UTC 2014
[Email protected]:~$
Cat/etc/os-release
Name= "Ubuntu"
version= "12.04.4 LTS, precise pangolin"
Id=ubuntu
Id_like=debian
Pretty_name= "Ubuntu precise (12.04.4 LTS)"
Version_id= "12.04"
View the system version number information command summary under Linux