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#!/bin/sh
#
# SccsId[] = "@(#)biggest.sh 1.9 05/22/07 (List 'biggest' files in filesystem)"
#
#----------------------------------------------------------------------#
# biggest.sh #
# -------------------------------------------------------------------- #
# #
# Copyright (c) 1995-2007 by Bob Orlando. All rights reserved. #
# #
# Permission to use, copy, modify and distribute this software #
# and its documentation for any purpose and without fee is hereby #
# granted, provided that the above copyright notice appear in all #
# copies, and that both the copyright notice and this permission #
# notice appear in supporting documentation, and that the name of #
# Bob Orlando not be used in advertising or publicity pertaining #
# to distribution of the software without specific, written prior #
# permission. Bob Orlando makes no representations about the #
# suitability of this software for any purpose. It is provided #
# "as is" without express or implied warranty. #
# #
# BOB ORLANDO DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS #
# SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY #
# AND FITNESS. IN NO EVENT SHALL BOB ORLANDO BE LIABLE FOR ANY #
# SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES #
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER #
# IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, #
# ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF #
# THIS SOFTWARE. #
# #
# -------------------------------------------------------------------- #
# Program documentation and notes located at the bottom. #
#----------------------------------------------------------------------#
#----------------------------------------------------------------#
# Script_name assignment is necessary if there exists the #
# possibility that this process may be run by the 'at' command. #
# Run via 'at' and $0 simply returns '/bin/sh' or 'sh' (hardly #
# desirable if you run that into basename). #
#----------------------------------------------------------------#
script_name="biggest.sh"
[ $0 = "/bin/sh" -o `dirname $0` = "." ] \
&& script_home=`pwd` || script_home=`dirname $0`
bin=/usr/bin # Default
moi=`expr "\`id\`" : 'uid=[0-9]*(\(.*\)) .*'`
#----------------------------------------------------------------#
# Do our best to find and assign $AWK executable variable. #
#----------------------------------------------------------------#
{ [ -x /usr/bin/nawk ] && AWK=/usr/bin/nawk ; } \
|| { [ -x /bin/nawk ] && AWK=/bin/nawk ; } \
|| { [ -x /usr/bin/gawk ] && AWK=/usr/bin/gawk ; } \
|| { [ -x /bin/gawk ] && AWK=/bin/gawk ; } \
|| { [ -x /usr/gnu/bin/gawk ] && AWK=/usr/gnu/bin/gawk ; } \
|| { [ -x /usr/bin/awk ] && AWK=/usr/bin/awk ; } \
|| { [ -x /bin/awk ] && AWK=/bin/awk ; }
#======================================================================#
# L O C A L F U N C T I O N S #
# (in alphabetical order) #
#----------------------------------------------------------------------#
EXIT_USAGE()
#----------------------------------------------------------------------#
{
echo "Usage: biggest.sh -fHh -l <nn> -s <nnn> -t <dir> -v fs\n" 1>&2
echo " -f = follow links" 1>&2
echo " -H = Full documentation" 1>&2
echo " -h = Usage brief" 1>&2
echo " -l = Displays <nn> lines" 1>&2
echo " -s = Minimum file size is <nnn>" 1>&2
echo " -t = Temp/work directory, <dir>" 1>&2
echo " -v = Edit (vi) file list" 1>&2
echo " fs = Required filesystem argument." 1>&2
echo "" 1>&2
exit 1
}
#----------------------------------------------------------------------#
SHOW_DOCUMENTATION() # Function documentation located at bottom. #
#----------------------------------------------------------------------#
{
#----------------------------------------------------------------#
# If the following variables are not set, use these as defaults. #
#----------------------------------------------------------------#
: ${script_name:=`basename $0`}
: ${script_home:=`dirname $0`}
SD_script_home=`echo $script_home | sed 's/\/*$/\//'`
#------------------------------------------------#
# User wants help, so find the documentation #
# section and print everything from there down. #
#------------------------------------------------#
$AWK -v script_name=$script_name \
'BEGIN { n=0 }
{ #------------------------------------------#
# Until we find the documentation section, #
# keep looking at each line. #
#------------------------------------------#
if (n == 0)
{
if ($0 ~ /^# +D O C U M E N T A T I O N/)
{
n = NR
print line
print $0
}
else
{
line = $0
}
next
} #-------------------------------------#
else # Once we find it, print until EOF. #
{ #-------------------------------------#
print
}
}
END {
if (n == 0) # Means there is no documentation section.
{
"date +%Y-%m-%d" | getline yyyy_mm_dd
print yyyy_mm_dd" NO DOCUMENTATION",
"section found for "script_name".\a" | "cat 1>&2"
exit 1 # Exit failure
}
exit 0 # Else exit success
}' ${SD_script_home}$script_name
exit $?
} # "SD_" prefix identifies this function's variables
#======================================================================#
# I N I T I A L I Z A T I O N #
#======================================================================#
opt_v=0 # Default 'vi' option (0 = Do NOT vi the file list)
tmp=/var/tmp
follow=""
size="499999" # Default minimum filesize
lines="500" # Default maximum lines
while getopts fHhl:s:t:v opt 2> /dev/null
do
case "$opt" in
f ) follow='-follow' ;;
H ) SHOW_DOCUMENTATION;;
h ) EXIT_USAGE ;;
l ) lines="$OPTARG" ;; # Max number of lines to display.
s ) size="$OPTARG" ;; # Minimum file size.
t ) tmp="$OPTARG" ;; # Temp directory (if /var/tmp full)
v ) opt_v=1 ;;
* ) echo "Ignoring invalid option, $1.";;
esac
done
#----------------------------------#
# Shift past options to arguments. #
#----------------------------------#
shift `expr $OPTIND - 1`
#======================================================================#
# M A I N #
#======================================================================#
[ $# -eq 0 ] && EXIT_USAGE
#-----------------------------------------------------------------#
# Ensure we have write-access to temp/work directory. #
#-----------------------------------------------------------------#
if [ ! -d $tmp ]; then
echo "Temp/work directory, $tmp not found!" \
"\n$script_name terminated."
exit 1
elif [ ! -w $tmp ]; then
echo "No write access to temp/work directory, $tmp!" \
"\n$script_name terminated."
exit 1
fi
#----------------------------------------------------------------#
# File lists of remote filesystems is problematic, so we limit #
# our operations to local filesystems only. #
#----------------------------------------------------------------#
df -lk $1
if [ $? -ne 0 ]; then
echo "$1 MUST be a local filesystem--it is not!" \
"\n$script_name terminated."
exit 1
fi
#----------------------------------------------------------------#
# Build a 'find' command with the necessary options/arguments. #
# Be sure to exclude anything with cdrom in it and include -xdev #
# -xdev if the filesystem being searched is root (/). #
#----------------------------------------------------------------#
outfile=$tmp/$moi"_biggest.files" # Formatted 'find' output
include='-size +'"$size"'c -exec ls -lc {} \;'
exclude='-o -fstype nfs -prune -o -name cdrom\* -prune'
[ ."$1" = ."/" ] && find_opt="-xdev $follow" || find_opt="$follow"
date "+%D %T"
find_cmd="find $1 $find_opt $include $exclude -print"
#----------------------------------------------------------------#
# Display find command before running it. Use [gn]awk to format #
# the output and sort it in descending order (biggest on top). #
#----------------------------------------------------------------#
echo "$find_cmd 2> /dev/null | $AWK"
eval $find_cmd 2> /dev/null | $AWK \
'BEGIN \
{
i = 0
own = 3
siz = 5
mmm = 6
day = 7
yyy = 8 # This may actually be yyyy or hh:mi
Mon = "^(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)$"
}
# "! /^[bcd]/" skips block and character devices and directories
! /^[bcd]/ \
{
#-----------------------------------------------------------#
# If it looks like owner and group fields are concatonated, #
# try backing up the field ($n) list and work with that. #
#-----------------------------------------------------------#
if ($siz !~ /[0-9]+/ && !match($mmm,Mon))
{
if ($(siz-1) ~ /[0-9]+/ && match($(mmm-1),Mon))
{
siz = 4 # 4th field
mmm = 5 # Etc.
day = 6
yyy = 7
}
}
gsub(/[\t ]+/," ") # Squeeze whitespace.
gsub(/./,"& ",$siz) # Isolate each digit,
q=split($siz,a," ") # then split the $siz into an array.
$siz="" # Clear $siz.
for (p=1;q>0;q--) # Insert commas into $siz.
{
$siz=a[q]""$siz
if ((p%3) == 0 && q != 1) $siz=","$siz # Insert commas here
p++
}
printf("%17s %-8s %s %02d %-5s %s\n",
$siz, $own, $mmm, $day, $yyy, $NF)
#-----------------------------------------------#
# if size value is not 5, then reset it, et al. #
#-----------------------------------------------#
if (siz != 5)
{
siz = 5
mmm = 6
day = 7
yyy = 8
}
}' | sort -r -k 1,2 | head -$lines > $outfile
#----------------------------------------------------------------#
# Unless 'vi' option was given, simply cat our file list. #
#----------------------------------------------------------------#
if [ `wc -l < $outfile` -eq 0 ]; then
echo "No files found in $1 > $size bytes in size."
else
[ $opt_v -eq 0 ] && cat $outfile || vi $outfile
fi
exit $?
#======================================================================#
# D O C U M E N T A T I O N #
#======================================================================#
# #
# Author: Bob Orlando (Bob@OrlandoKuntao.com) #
# #
# Date: April 8, 1995 #
# #
# Program ID: biggest.sh #
# #
# Code Contrl: aphrodite:~dmc/SCCS. #
# #
# Usage: biggest.sh -fHh -l <nn> -v -t <dir> -s <nnn> fs #
# #
# -f = Follow links #
# -H = Displays detailed documentation #
# -h = Provides usage brief #
# -l = Displays <nn> lines (default is 500) #
# -s = Minimum file size is <nnn> #
# (default is 500K) #
# -t = Use <dir> as temp/work directory #
# (default is /var/tmp) #
# -v = Edit (vi) file list #
# fs = Required filesystem argument. #
# #
# Purpose: List biggest files in a given filesystem (files #
# appear in descending order). #
# #
# Description: Using the find command, descend through the specified #
# file system (fs) listing all files whose sizes exceed #
# either the default minimum size (500K) or the minimum #
# value provided via size (-s) option. The filelist #
# is created in /var/tmp by default as it usually much #
# larger than /tmp. However, in the event that /var #
# is the filesystem that's full (or is not writable to #
# the user), the temp dir (-t) option is available to #
# redirect the output elsewhere. #
# #
# When root is the directory being searched, -xdev is #
# supplied as a find argument so only root, and none #
# of its subdirectories, is searched. #
# #
# With the 'vi' option (-v) the user can edit the #
# normally cat'd file list. #
# #
# Modified: 2007-05-22 Bob Orlando #
# v1.9 * Change $LOGNAME to $moi to reduce issues #
# that can pop up when the user runs the #
# script su'd as root one time, then run #
# as the general user the next. #
# #
#----------------------------------------------------------------------#
| ©Copyright Bob Orlando, 2003. All rights reserved. |
http://www.OrlandoKuntao.com E-mail: Bob@OrlandoKuntao.com |
Last update:
Sep. 16, 2007 by Bob Orlando |