Shell scripting implements managing multiple servers at the same time

Shell scripting to manage multiple servers at the same time, without the use of ansible, automatic manual implementation

SSH does not log on to the Machine execution command (if you have to implement password-free login)

ssh 127.0.0.1 ‘ifconfig‘ssh 127.0.0.1 ‘ifconfig|grep bbb‘ssh 127.0.0.1 ‘tail /var/log/secure‘

Shell while looping through the IP list of servers that need to be managed

cat /tmp/hosts|while read line;doecho $line;done

Combine these two implementations to manage multiple servers at the same time

• The first idea, but no way to manage multiple servers at the same time, can only manage 1 units

  cat /tmp/hosts|while read line;doecho $linessh $line ‘tail /var/log/secure‘done

• A try to hit the log, or not

  cat /tmp/hosts|while read line;doecho $linessh $line ‘tail /var/log/secure‘ >/tmp/${line}.logdone

• Try to succeed, must be placed in the background &

  cat /tmp/hosts|while read line;doecho $linessh $line ‘tail /var/log/secure‘ >/tmp/${line}.log &done

  SSH no password, SCP is also no password.

  Combined with the above, we have been able to manage multiple servers simultaneously, batch run commands, batch upload files, bulk download files.

Shell scripting implements managing multiple servers at the same time