Howto check equipment's multiple logs on the log server

logs are stored onto server as .log or .gz

Go to the folder of the device that you want to check:

For .log files, do 'grep -r "keywords that you are interested" *.log' or 
                          'grep -r -v "keywords that you are NOT interested" *.log';

For .gz files, do 'zgrep -E "keywords that you are interested" *.gz' or
                        'zgrep -E -v "keywords that you are NOT interested" *.gz'