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Top Forums Shell Programming and Scripting Problem getting data to a report file. Post 12277 by Perderabo on Monday 24th of December 2001 09:24:41 AM
Old 12-24-2001
Quote:
Originally posted by Cameron
Perderabo,

Just quickly, you have in your sample ... ${xspline}.

Is this (${}) considered standard?
Yes it is standard and the syntax goes back to the Bourne shell itself. It is absolutely required here: "x=${y}z". Without the braces, the shell would look for a variable called yz. But you can use braces whenever you want. I always do when I concatenate variables because I think it makes the code clearer. I will use superfluous quotes for the same reason. I prefer x="true" to x=true even though both work.


Quote:
Originally posted by Cameron

And is ${xspc%%%} the same as $xspc%%%% ?
The former will remove a % from the end. The latter will add 4 %'s to the end. So they're different.
 

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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/lib64/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/lib64/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 (sysstat <at> orange.fr) SEE ALSO
sar(1), sadc(8), sa1(8), sadf(1) http://pagesperso-orange.fr/sebastien.godard/ Linux AUGUST 2010 SA2(8)
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