Listing 4. A Sample of the nag and Shell Scripts [root@server /]# ls /home/sysman/scripts/ disk.nag http-forb.nag nfs.nag pop3.nag smtp.nag disk.sh http.nag nfs.sh printer.nag snmp.nag dns.nag http.sh nmb.sh proxy.nag ssh2.nag dns.sh imap.exp ntp.sh slap.nag ssh.nag ftp.exp imap.nag pgsql2.nag slap.sh ssh.sh ftp.nag mysql.nag pgsql.nag smb.nag http-auth.nag mysql.sh pgsql.sh smb.sh http.exp nagios.nag pop3.exp smtp.exp