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notification
Tutor: Lu Thanh Tr
Email: lttra hoasen.edu.vn
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Outline
Scheduling utilities
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mail and mailx
mail -s This is the subject $MAILOUT_LIST < $MAIL_FILE
OR
cat $MAIL_FILE | mail -s This is the subject $MAILOUT_LIST
ma x -s s s t e su ect _ < _
OR
cat $MAIL_FILE | mailx -s This is the subject $MAILOUT_LIST
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_
$MAIL_FILE : email content
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Example with mail/mailxMAIL_FILE=/tmp/mailfile.out
cat /dev/null > $MAIL_FILE
[email protected]@mypage_somebody.net
check_filesystems
# This function checks the filesystems percentage
if [ -s $MAIL_FILE ]
then
mail -s Filesystem Full $MAIL_LIST < $MAIL_FILEfi
Note: -v for debug
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_
{=
PERCENT=98
= -
echo $THISHOST: $FS is $PERCENT | tee -a $MAIL_FILE
}
Note: ps -eo pid,pcpu,comm|egrep -v 0.0|sort -r -k2
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sendmail1. function send_notification
2.
3. if [ -s $MAIL_FILE -a $MAILOUT = TRUE ];4. then
.
6. AIX|HP-UX|Linux) SENDMAIL=/usr/sbin/sendmail
7. ;;8. SunOS) SENDMAIL=/usr/lib/sendmail
9. ;;
10. esac
11. echo \nSending email notification
12. $SENDMAIL -f randy@$THISHOST $MAIL_LIST enscript -Pcsl
csci330.csh
at> commands will be executed using /bin/sh
o a u ec : :
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at utilities
atq
s s user s sc e u e o s
atrm
removes specified job from at queue
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batch command
batch
schedules job to be performed when systemload is lowsame program
as a
yn ax:
% batch command
on turing: lowmeans load is less than 1.5
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Login Accounting
wtm DB of all lo ins and lo outs
Time User/TTY
Where
utmp DB of currently logged in users
who/w Lists currently logged in users
last Lists all lo in sessions
lastlog List last time users logged in
