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Jan 13, 2000, 6:33 PM
Post #6 of 6
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Re: How do I delete a file when diskfull?
[In reply to]
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Can't Post
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Hi,
Here is something that may help. Please understand this is not tested code...
<BLOCKQUOTE><font size="1" face="Arial,Helvetica,sans serif">code:</font><HR>
#!/usr/bin/perl -w
use strict;
use vars '%size';
# This is a lazy way to recurse and
# you may have to install this module
use File::Recurse;
open DF, "/bin/df|" or die "Broken pipe: $!";
my $used;
while (<DF> ) {
if (m| (\d+)% +/log$|) {
$used = $1;
last;
}
}
close DF or warn "Pipe closed prematurly: $?";
if ($used >= 90) {
opendir LH,'/log' or die "Could not open /log: $!";
my @logs = grep /\d{8}/, readdir LH;
closedir LH;
# I do not know of a way to get the size of an
# entire directory in perl without recursing it.
# There may be a way I do not know of. The two
# ways I know are to either recurse it our self
# or use /usr/bin/du. In this example we will
# do it our self
# If someone knows a better way to do this
# please let me know
recurse(\&add,"/log/$_",$_) for @logs;
sub add { $size{$_[1]} += (-s) if (-f) }
my @sortedkeys = sort { $size{$a} <=> $size{$b} } keys %size;
# OK now we need to remove the directory recursivly
# again I know of no built in way to do this so we
# can either recurse is our self or use /bin/rm -r
# Here I will use /bin/rm -r sence it is a common program
system('/bin/rm','-r',"/log/$sortedkeys[0]") == 0
or die "System /bin/rm -r /log/$sortedkeys[0] failed: $?";
}
exit;</pre><HR></BLOCKQUOTE>
Please Please test this before you use it.
Scott
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