Command to check the CPU info on different Operating system

Command to check the CPU info on different Operating system

LINUX:

# cat /proc/cpuinfo

SOLARIS:

# psrinfo –v

# prtdiag 

or

# prtdiag | grep SUNW

# prtconf

AIX:

# lscfg -l proc*

and 

# lsattr -El <proc_num_from_above_cli>

HP-UX:

# machinfo