Question : Problem: Linux SSH command for system specs information

Is there some sorta command i can run from SSH on a Red HAT linux server which will let me see the servers specs?    OS version,  CPU speed (for sure) .Memory, Hard drives.  I'm have a feeling that i got cheated on hardware.
Also supposly supposed to have a 2nd hard drive but have no idea how to get to it

Answer : Problem: Linux SSH command for system specs information

SSH is a secure transport mechanism, it has nothing to do with the shell/command line.

Following commands should help

1.  Linux/Redhat version
uname -r
cat /etc/redhat-release

2.  Disks/Filesystems
fdisk -l
df -h

3.  CPU
cat /proc/cpuinfo
top

4.  Memory
cat /proc/meminfo