giving permission to read a specific file using sudo:
visudo
#Support Staff
Cmnd_Alias = LOGS = /bin/cat /var/log/squid/access.log, /bin/zcat /var/log/squid/access.log.[0-9].gz
%logaccess ALL (all) NOPASSWD: LOGS
This gives access to the Squid Logs to anyone in the logaccess group.
(sudo zcat /var/log/squid/access.log.1.gz) | grep "microsoft.com"
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