SEARCHSOLARIS.COM Administrator Tip SPONSORED BY: PostMasterDirect.com ==================================== Get free offers from reputable merchants for products that you are interested in. Pick from over 50 categories of interest, modify your profile at any time to suit your needs, and receive only the email that interests you when you subscribe today. Just click on the link below and get your account up and running: http://searchsolaris.techtarget.com/postmasterDirect/ ==================================== "Reporting filesystem quotas," by John P. Mulligan Need to check multiple users' disk usage and quota limits? The repquota utility is just what you need. This tip, excerpted from "Solaris 8 Essential Reference," written by John P. Mulligan and published by New Riders, covers some basics regarding use of the repquota utility and includes a CGI script that will allow users to check their quota usage over the Web. The repquota utility is used to report quota information for multiple users at a time. For displaying quota information for one user at a time, the quota command can be used. A filesystem, to be reported, must be specified unless the -a option is given, in which case all filesystems with quotas are reported. Keeping Quotas Private By default, Solaris allows all users of the system to use the repquota command. The repquota in /usr/sbin is actually a link to another file: lrwxrwxrwx 1 root 22 Oct 21 1996 /usr/sbin/repquota -> ../lib/fs/ufs/repquota The linked file is as follows: -r-xr-xr-xn 1 bin 8616 May 2 1996 ..lib/fs/ufs/repquota This file is executable by all. This means that all users on the system will be able to use the repquota utility. In most cases, this is not a problem, but if for some reason quota limits and disk usages are to be kept private, change the execute permission of /usr/lib/fs/repquota as follows (as root): chmod 550 /usr/lib/fs/repquota Option Description -a Report all filesystems with quotas enabled. Filesystems with quotas enabled will have a rq in the mntopts field of /etc/vfstab. -v Report quota summaries for all users regardless of disk usage. The output from repquota is similar to the following: Block limits File limits User used soft hard timeleft used soft hard timeleft smithj -- 19 10000 10000 4 0 0 jonesb - 3121 10000 10000 77 0 0 smithk - 39 10000 10000 7 0 0 jonesw - 6393 10000 10000 175 0 0 smithr - 4271 10000 10000 135 0 0 Reporting Quotas over the Web In some cases, it may be desirable to allow users to check their quota usage over the Web. There are many ways to do this. The following CGI script is just one example of the way this can be done. It assumes that the username has been taken from an HTML form and passed to the $FORM_uname variable. It also assumes that $HOME is the base of the URL (such as http://www.somedomain.com). It also uses two GIF images that are scaled using the WIDTH option in the <IMG> tags to display a bar graph representation of the quota usage. It should be noted that this script can be used by any user to check any other user's quota. If quotas are to be kept private, this script should be modified. Caution on CGI Security Issues: Never run CGI scripts as root or other privileged users on the system. The script included in this section should probably be run as user nobody. Code if [ -z "$FORM_uname" ];then FORM_uname="none" fi DATE=`date` WWW=http://www.somedomain.com QUOTA=`/usr/sbin/repquota -a| grep $FORM_uname |head -1| awk --> '{print $4}'` cat << EOM <TITLE>Quota for $FORM_uname</TITLE> <BODY BGCOLOR="#FFFFFF" TEXT="#000000"> <CENTER> <TABLE BORDER=0 CELLPADDING=0 CELLSPACING=0 WIDTH=500> <TR><TD BGCOLOR="#666699"> EOM #check if there is no quota set for user if [ -n "$QUOTA" ]; then QUOTA=`/usr/sbin/repquota -a| grep $FORM_uname|head -1 | awk -->`{print $5}'` USED='/usr/sbin/repquota -a| grep $FORM_uname |head -1 | awk -->`{print $3}'` PUSED=`expr $USED * 100 / $QUOTA` PFREE=`expr 100 - $PUSED` NAME=`grep $FORM_uname /etc/passwd/head -1|awk '{FS=":";print -->$5}'` if [ $PFREE -lt 0 ];then PFREE=1 fi if [ -z "$NAME" ];then NAME=`/usr/sbin/repquota -a| grep $FORM_uname|head -1 | awk -->'{print $1}'` fi cat << EOM <FONT FACE="Arial, Helvetica" SIZE=5 COLOR="#FFCC00">Quota for $NAME</FONT> <CENTER> <TR><TD BGCOLOR="#FFFFCC"> EOM if [ $PUSED -gt 100 ]; then cat << EOM <FONT FACE="Arial, Helvetica" COLOR="#FF0000" SIZE=4> YOU ARE OVER YOUR QUOTA LIMIT</FONT> <P> <FONT FACE="Arial, Helvetica">Immediately remove unwanted files from -->your account in order to decrase your disk -->usage.</FONT><P> EOM fi cat << EOM <FONT FACE="Arial, Helvetica">You are currently using $USED KB -->of disk space in your web account. That means you are using -->$PUSED% of your quota limit.<P><BR> <FONT FACE="Arial Black, Arial, Helvetica" SIZE=6><CENTER> -->$PUSED% FULL</FONT> <BR CLEAR=both> <IMG BORDER=0 WIDTH=$PUSED HEIGHT=20 HSPACE=0 ALT="$PUSED% -->used" SRC="$WWW/images/blue_button.gif"> <IMG BORDER=0 WIDTH=$PFREE HEIGHT=20 HSPACE=0 ALT="$PFREE% -->free" SRC="$WWW/images/blank_button.gif"><P><BR> EOM else cat << EOM <FONT FACE="Arial" COLOR="#FFCC00" SIZE=5>NO QUOTA</FONT> <TR><TD BGCOLOR="#FFFFCC"> <FONT FACE="Arial, Helvetica"> No quota set for $FORM_uname. Perhaps you typed the user name -->incorrectly. Please resubmit your query. <BR CLEAR=both><P><BR> <A HREF="$WWW/quota.html">Try again.</a> EOM fi echo "</TABLE><PRE></CENTER> echo "$DATE: $REMOTE_HOST checked $FORM_uname" >> -->$HOME/log/quota.log The accompanying HTML that includes a form to use is given here: <FORM METHOD=GET ACTION="/cgi-bin/quotacheck"> <FONT FACE="Arial, Helvetica"> Enter your username: </FONT> <INPUT NAME="uname" SIZE=15><P> <CENTER> <FONT FACE="Arial, Helvetica" SIZE=3> <INPUT TYPE=RESET VALUE="Reset form"> <INPUT TYPE=SUBMIT VALUE="Press to Check"></FONT> </FORM> To learn more about the "Solaris 8 Essential Reference," or to buy this book, click on http://www.digitalguru.com/dgstore/product.asp?sku=0735710074&dept%5Fid=242&ac%5Fid=68&accountnumber=&couponnumber=. Did you like this tip? To rate this and other tips, or to submit a tip of your own, go to http://searchsolaris.techtarget.com/tipsIndex/0,289482,sid12_tax281849,00.html. 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