How to ssh to a server and get CPU and memory details?

Question

I am writing a shell script where i want to ssh to a server and get the cpu and memory details data of that displayed as a result. I’m using the help of top command here.

Script line:

ssh -q user@host -n “cd; top -n 1 | egrep ‘Cpu|Mem|Swap’”

But the result is

TERM environment variable is not set. 

I had checked the same in the server by entering set | grep TERM and got result as TERM=xterm

Please someone help me on this. Many thanks.

Answer 1

Got it..!! Need to make a small modification for the below script line.

ssh -t user@host -n "top -n 1 | egrep 'Cpu|Mem|Swap'"

Instead of -t we need to give -tt. It worked for me.

To execute command top after ssh’ing. It requires a tty to run. Using -tt it will enable a force pseudo-tty allocation.

Thanks stony for providing me a close enough answer!! :)

Answer 2

top need an environment. You have to add the parameter -t to get the result:

ssh -t user@host -n "top -n 1 | egrep 'Cpu|Mem|Swap'"

Answer 3

Try using the top -b flag:

ssh -q user@host -n "cd; top -bn 1 | egrep 'Cpu|Mem|Swap'"

This tells top to run non-interactively, and is intended for this sort of use.