Here is a simple CentOS system to see if the CPU supports 64-bit examples, I hope this example can help everyone.
To see if LM is in the Cpuinfo, if LM indicates support for 64-bit, LM means long mode, and the specific commands are as follows:
Cat/proc/cpuinfo | grep flags
Check to see if LM characters are inside the output
Or
Cat/proc/cpuinfo | grep Flags | grep LM | Wc-l
Output is greater than 0 to support 64-bit
CAT grammatical structure;
de>cat [Options] [File]...de>
Options
-A,--show-all equivalent to-vet
-B,--number-nonblank for non-null output line numbering
-e equivalent to-ve
-E,--show-ends displays $ at end of each line
-N,--number all line numbers for the output
-S,--squeeze-blank does not output multiple lines of blank lines
-T and-VT equivalence
-T,--show-tabs displays the jump character as ^i
-U (ignored)
-V,--show-nonprinting use ^ and M references, except LFD and TAB
--HELP Display this help information and leave