A script for shell monitoring service logs

Assume/var/log/. log is the log file of a program. Its content is: 18:12:17, 788 INFO [com. kmsocial. search. websearch. weiboPool: 229]-Weibo pool running! A script is required. If no new log is generated more than 2 minutes, the mail is sent to the admin@localhost.localdomain #! /Bin/bash LOGFILE = "/var/log/. log "STARTNUM = 'wc-l $ logfile' mail _ to_root () {mail-s" weibo pool has some problem "root <! There has no logs in two minutes !!} Exec 6 <"$ LOGFILE" while: do NEWNUM = 'wc-l $ logfile' if ["$ STARTNUM" _ = "$ NEWNUM" _]; then mail_to_root else STARTNUM = $ NEWNUM fi while read-u 6 new_log do if echo "$ new_log" | grep-q "Weibo pool running"; then while read-u 6 tmp do: done break else mail_to_root fi done sleep 120 doneexec 6 <&-