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#!/usr/bin/perl -P
# $RCSfile: scan_df,v $$Revision: 1.1 $$Date: 1996/08/19 10:11:56 $
# This report points out filesystems that are in danger of overflowing.
(chdir '/usr/adm/private/memories') || die "Can't cd to memories: $!\n";
`df >newdf`;
open(Df, 'olddf');
while (<Df>) {
($fs,$kbytes,$used,$avail,$capacity,$mounted_on) = split;
next if $fs =~ /:/;
next if $fs eq '';
$oldused{$fs} = $used;
}
open(Df, 'newdf') || die "scan_df: can't open newdf";
while (<Df>) {
($fs,$kbytes,$used,$avail,$capacity,$mounted_on) = split;
next if $fs =~ /:/;
next if $fs eq '';
$oldused = $oldused{$fs};
next if ($oldused == $used && $capacity < 99); # inactive filesystem
if ($capacity >= 90) {
#if defined(mc300) || defined(mc500) || defined(mc700)
$_ = substr($_,0,13) . ' ' . substr($_,13,1000);
$kbytes /= 2; # translate blocks to K
$used /= 2;
$oldused /= 2;
$avail /= 2;
#endif
$diff = int($used - $oldused);
if ($avail < $diff * 2) { # mark specially if in danger
$mounted_on .= ' *';
}
next if $diff < 50 && $mounted_on eq '/';
$fs =~ s|/dev/||;
if ($diff >= 0) {
$diff = '(+' . $diff . ')';
}
else {
$diff = '(' . $diff . ')';
}
printf "%-8s%8d%8d %-8s%8d%7s %s\n",
$fs,$kbytes,$used,$diff,$avail,$capacity,$mounted_on;
}
}
rename('newdf','olddf');
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