From: Hustert Klaus-CKH035 (Klaus.Hustert@motorola.com)
Date: Thu Sep 18 2003 - 09:31:39 EDT
Special thanks to Bill Hassel for this input:
=============================================
Don't look for big files! While there may be a few, you likely have directories that are in the wrong place (under /, not /opt). Use this command to find the big directories:
du -kx / | sort -rn > /var/tmp/du.root
NOTE: /dev should be perhaps 15-25 kbytes. If it is very large, someone created a regular file in /dev, usually a spelling error.
OLD SUMMARY:
============
Thanks to all who has respond and so really fast they did!
The key answer is the param -xdev for the find command I think.
The answer I got mostly was `find / -xdev -size +100000c -print`
Some variations:
find / -xdev -type f -exec du -k {} \; | sort -n
find / -xdev -size +1000 -exec ll -d {} \;
But also the others are from interrest:
find / -fstype hfs -type f -exec ls -l {} \;
du / | sort -n
du -sk * | sort -nr | head -nn (where nn is a number of files you want to report back. 10 is a good start point...) cd /;du -akx * | sort -rn | more
Or some perl scripts:
First:
#!/usr/bin/ksh
#
# bigger <size_in_mbyte>
#
# Show the files bigger then a given value in MB, sorted by size. # Performs the search starting from current directory
# and only in current filesystem (thanks to -xdev).
#
# Stefano at Unternaehrer dot net
if test $1 && test $1 -gt 0
then
GRAND=$1
BYTES=`echo ${GRAND}*1024*1024 | bc`
echo
pwd
echo Files bigger than $GRAND MB in current FS:
echo
FNAMES=`find . -xdev -size +${BYTES}c`
if test -n "$FNAMES"
then
ls -Al ${FNAMES} | sort +4nr
else
echo -- nothing --
fi
echo
else
echo
echo "usage: bigger size_in_megabytes"
echo " ex: bigger 10"
echo
fi
Second:
- - - - - snip - - - - -
#!/usr/bin/perl
#
# 06/03 wht; v1.20: Made verbose the default output and added the -s option # 06/03 wht; v1.10: Added verbose (-v) option # 06/03 wht; v1.00: Created
#*****************************************************************************
# fbig
#*****************************************************************************
#
# PURPOSE
# find big files
#
# SYNTAX
# fbig [ -s ] [ starting_directory ]
#
# OPTIONS
# -s size only (or "simple") output
#
# starting_directory
# directory to start looking for files.
# default is the current directory
#
#*****************************************************************************
#
$CMD = $0; # full program name as it was called
$0 =~ s:^.*/::; # program name sans directory info
$VERSION = "1.00"; # version
$FALSE = 0; # FALSE
$TRUE = 1; # TRUE
# month number to name hash
%NUM_TO_MONTHS = (
0 => "Jan", 1 => "Feb", 2 => "Mar",
3 => "Apr", 4 => "May", 5 => "Jun",
6 => "Jul", 7 => "Aug", 8 => "Sep",
9 => "Oct", 10 => "Nov", 11 => "Dec",
);
#-----------------------------------------------------------------------------
# Main Routine
#
# Note: The main routine is simply a wrapper for the real script so the
# output can be piped through "more".
#
FBig: {
# if the first argument on the command line is "==Run_FBig==" then
# drop the "==Run_FBig==" argument and call the real code.
if ( $ARGV[0] eq "==Run_FBig==" ) {
shift(@ARGV);
Run_FBig();
} #END if ( $ARGV[0] eq "==Run_FBig==" )
# otherwise, recall the command adding the "==Run_FBig==" argument
# and pipe the output through more.
else {
system("$CMD '==Run_FBig==' @ARGV | /bin/more -e");
} #END else
} #END FBig
#-----------------------------------------------------------------------------
# Run_FBig
# This is the real code
#
sub Run_FBig {
# default is verbose output
$VERBOSE = $TRUE;
# turn off verbose output if -s was specified
if ( @ARGV[0] eq "-s" ) { $VERBOSE = $FALSE; shift(@ARGV); }
# get starting directory
$starting_dir = Get_Starting_Directory();
# get a list of files
# o files only - no directories, links, special files, etc.
# o use xdev to stay inside the current filesystem
# o reverse sort so when the second reverse sort is performed,
# files of the same size will appear in alphabetical order
foreach $file ( reverse(sort(qx(/bin/find $starting_dir -xdev -type f -print))) ) {
# get rid of the trailing newline
chomp($file);
# use stat to get the file size
($mode,$uid,$gid,$size,$mtime) = (lstat($file))[2,4,5,7,9];
# create a unique key (for multiple files of the same size)
$i = 0;
do {
$key = sprintf "H%20s%.10d", $size, $i; $i++;
} until ( ! defined($file{$key}) );
# save the file name other important info
$file{$key} = $file;
$mode{$key} = $mode;
$uid{$key} = $uid;
$gid{$key} = $gid;
$size{$key} = $size;
$mtime{$key} = $mtime;
} #END foreach $file ( reverse(sort(qx(/bin/find $starting_dir -xdev -type f -print))) )
# could find zero regular files in a directory path so output
# a small message rather than just returning to the command prompt
if ( ! defined(%file) ) {
print "no files found\n";
return();
} #END if ( ! defined(%file) )
if ( $VERBOSE ) {
# create UID to user name hash
while ( ($name,$uid) = (getpwent)[0,2] ) { $user{$uid} = $name unless ( defined($user{$uid}) ); }
# create GID to group name hash
while ( ($name,$gid) = (getgrent)[0,2] ) { $group{$gid} = $name unless ( defined($group{$uid}) ); }
# compute the epoch time of six months ago
# => current epoch time minus half the number of seconds in a year (365 days)
$six_months_ago = time() - 15768000;
# sort the output by file size/file name
foreach $key ( reverse(sort(keys(%file))) ) {
printf "-%9s %-8s %-8s %11s %12s %s\n",
Get_Attr($mode{$key}),
defined($user{$uid{$key}}) ? $user{$uid{$key}} : $uid{$key},
defined($group{$gid{$key}}) ? $group{$gid{$key}} : $gid{$key},
Add_Commas($size{$key}),
Format_Time($mtime{$key}),
$file{$key};
} #END foreach $key ( reverse(sort(keys(%file))) )
} #END if ( $VERBOSE )
else {
# sort the output by file size/file name
foreach $key ( reverse(sort(keys(%file))) ) {
printf "%15s %s\n", Add_Commas($size{$key}), $file{$key};
} #END foreach $key ( reverse(sort(keys(%file))) )
} #END else
} #END Run_FBig
#-----------------------------------------------------------------------------
# Get_Starting_Directory
# Determines the starting directory
#
sub Get_Starting_Directory {
# if the user specified a directory on the command line...
if ( defined($ARGV[0]) ) {
# error if not a directory
die "$0: $ARGV[0] is not a directory\n" unless ( -d $ARGV[0] );
return($ARGV[0]);
} #END if ( defined($ARGV[0]) ) {
return(".");
} #END Get_Starting_Directory
#-----------------------------------------------------------------------------
# Get_Attr
# Turn octal permissions into text attributes
#
# Local Vars
# $mode permissions in octal form
# $bits permissions converted to a binary string of characters
#
# Notes
# 4000 (= u=s) Set user ID on file execution (file only)
# 2000 (= g=s) Set group ID on file execution (file only)
# 1000 (= u=t) Set sticky bit
# 0400 (= u=r) Read by owner
# 0200 (= u=w) Write by owner
# 0100 (= u=x) Execute (search in directory) by owner
# 0040 (= g=r) Read by group
# 0020 (= g=w) Write by group
# 0010 (= g=x) Execute/search by group
# 0004 (= o=r) Read by others
# 0002 (= o=w) Write by others
# 0001 (= o=x) Execute/search by others
#
sub Get_Attr {
my($mode) = shift;
# convert octal mode to a binary string of characters
my $bits = unpack("B32", pack("N", $mode));
# get the attributes for the owner
$attr = Gen_Attr_String(substr($bits,-12,1),"s",substr($bits,-9,1),substr($bits,-8,1),substr($bits,-7,1));
# get the attributes for the group
$attr .= Gen_Attr_String(substr($bits,-11,1),"s",substr($bits,-6,1),substr($bits,-5,1),substr($bits,-4,1));
# get the attributes for the world
$attr .= Gen_Attr_String(substr($bits,-10,1),"t",substr($bits,-3,1),substr($bits,-2,1),substr($bits,-1,1));
return($attr);
} #END Get_Attr
#-----------------------------------------------------------------------------
# Gen_Attr_String
# Generate the attribute string
#
# Local Vars
# $special special bit
# $s_or_t character to output (s or t) if $special is set to
1
# $read read bit
# $write write bit
# $execute execute bit
#
# $char1 first character of attribute string
# $char2 second character of attribute string
# $char3 third character of attribute string
#
sub Gen_Attr_String {
my($special,$s_or_t,$read,$write,$execute) = @_;
my($char1,$char2,$char3);
# output a dash unless otherwise set
$char1 = $char2 = $char3 = "-";
# set the rwx characters
$char1 = "r" if ( $read );
$char2 = "w" if ( $write );
$char3 = "x" if ( $execute );
# set special flag if special bit is 1
if ( $special ) {
# set the execute character to an s or t
$char3 = $s_or_t;
# change the character to uppercase if the execute bit is not set
$char3 = uc($char3) unless ( $execute );
} #END if ( $special )
# return the full attribute string
return ("${char1}${char2}${char3}");
} #END Gen_Attr_String
#-----------------------------------------------------------------------------
# Add_Commas
# Add commas to numbers in a string
#
sub Add_Commas {
my($string) = shift;
# reverse the string
$string = reverse($string);
# add commas to the numbers in the string
$string =~ s/(\d\d\d)(?=\d)(?!\d*\.)/$1,/g;
# reverse string again
return(scalar(reverse($string)));
} #END Add_Commas
#-----------------------------------------------------------------------------
# Format_Time
# format the mtime of a file
#
# Local Vars
# $mtime mtime of a file in epoch seconds
# $min minute
# $hour hour
# $day day
# $month month
# $year year
#
sub Format_Time {
my($mtime) = shift;
my($min,$hour,$day,$mon,$year);
# convert epoch mtime to month, day, year, hour, and minute
($min,$hour,$day,$month,$year) = (localtime($mtime))[1..5];
# if file is more than six months old...
if ( $mtime < $six_months_ago ) {
# show mtime in month, day, year
return(sprintf "%s %2d %4d", $NUM_TO_MONTHS{$month}, $day, $year + 1900);
} #END if ( $mtime < $six_months_ago )
# if file is less than six months old...
else {
# show the mtime in month, day, hour, minute
return(sprintf "%s %2d %.2d:%.2d", $NUM_TO_MONTHS{$month}, $day, $hour, $min);
} #END else
} #END Format_Time
- - - - - snip - - - - -
Thanks again,
Klaus
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