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Full Discussion: Simple script loop question
Top Forums Shell Programming and Scripting Simple script loop question Post 302073690 by blowtorch on Wednesday 17th of May 2006 12:10:44 AM
Old 05-17-2006
Use something like this:
Code:
while true; do date >> /var/log/perfmon.log; sleep 300; done &
vmstat 300 >> /var/log/perfmon.log &

Remember that you cannot run the vmstat command in a loop, as it will display cumulative stats the first time it runs.
 

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SA2(8)								Linux User's Manual							    SA2(8)

NAME
sa2 - Write a daily report in the /var/log/sa directory. SYNOPSIS
/usr/lib/sa/sa2 DESCRIPTION
The sa2 command is a shell procedure variant of the sar command which writes a daily report in the /var/log/sa/sardd file, where the dd parameter indicates the current day. The sa2 command handles all of the flags and parameters of the sar command. The sa2 command is designed to be started automatically by the cron command. EXAMPLES
To run the sa2 command daily, place the following entry in your root or adm crontab file: 5 19 * * 1-5 /usr/lib/sa/sa2 -A & This will generate a daily report called /var/log/sa/sardd It will also remove reports more than one week old. FILES
/var/log/sa/sardd Indicate the daily report file, where the dd parameter is a number representing the day of the month. AUTHOR
Sebastien Godard <sebastien.godard@wanadoo.fr> SEE ALSO
sar(1), sadc(8), sa1(8), mpstat(1), iostat(1), vmstat(8) http://perso.wanadoo.fr/sebastien.godard/ Linux DECEMBER 1999 SA2(8)
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