Posted by: Master Will | March 5, 2015

How can I determine what is taking up so much space?

1. Use linux command
du -hscx *

2. Write shell script
------------------------------------------
#!/bin/bash

if [ "$1" == "-b" ] ;then
    shift
    export units=(b K M G T P)
    export duargs="-xbs"
    export minsize=${2:-$((256*1024**2))}
else
    export units=(K M G T P)
    export duargs="-xks"
    export minsize=${2:-$((256*1024))}
fi

humansize() {
    local _c=$1 _i=0
    while [ ${#_c} -gt 3 ] ;do
    ((_i++))
    _c=$((_c>>10))
    done
    _c=$(( ( $1*1000 ) >> ( 10*_i ) ))
    printf ${2+-v} $2 "%.2f%s" ${_c:0:${#_c}-3}.${_c:${#_c}-3} ${units[_i]}
}

export device=$(stat -c %d "${1:-.}")

rdu() {
    local _dir="$1" _spc="$2" _crt _siz _str
    while read _siz _crt;do
        if [ $_siz -gt $minsize ];then
        humansize $_siz _str
        printf "%s%12s%14s_%s\n" "$_spc" "$_str" \\ "${_crt##*/}"
        [ -d "$_crt" ] &&
        [ $(stat -c %d "$_crt") -eq $device ] &&
            rdu "$_crt" "  $_spc"
    fi
    done < <(
    find "$_dir" -mindepth 1 -maxdepth 1 -xdev \
        \( -type f -o -type d \) -printf "%D;%p\n" |
        sed -ne "s/^${device};//p" |
        tr \\n \\0 |
        xargs -0 du $duargs |
        sort -nr
    )
}

rdu "${1:-.}"
------------------------------------------
Usage:
./rdu.sh /usr 100000000
       1.53G             \_lib
       143.52M             \_i386-linux-gnu
       348.16M             \_x86_64-linux-gnu
       107.80M             \_jvm
         100.20M             \_java-6-openjdk-amd64
           100.17M             \_jre
              99.65M             \_lib
       306.63M             \_libreoffice
         271.75M             \_program
       107.98M             \_chromium
      99.57M             \_lib32
     452.47M             \_bin
       2.50G             \_share
       139.63M             \_texlive
         129.74M             \_texmf-dist
       478.36M             \_locale
       124.49M             \_icons
       878.09M             \_doc
         364.02M             \_texlive-latex-extra-doc
           359.36M             \_latex

3. Use utility named "ncdu" that download at http://dev.yorhel.nl/ncdu
Sample output
ncdu 1.7 ~ Use the arrow keys to navigate, press ? for help                                                         
--- /data ----------------------------------------------------------------------------------------------------------
  163.3GiB [##########] /docimages                                                                                  
   84.4GiB [#####     ] /data
   82.0GiB [#####     ] /sldata
   56.2GiB [###       ] /prt
   40.1GiB [##        ] /slisam
   30.8GiB [#         ] /isam
   18.3GiB [#         ] /mail
   10.2GiB [          ] /export
    3.9GiB [          ] /edi   
    1.7GiB [          ] /io     
    1.2GiB [          ] /dmt
  896.7MiB [          ] /src
  821.5MiB [          ] /upload
  691.1MiB [          ] /client
  686.8MiB [          ] /cocoon
  542.5MiB [          ] /hist
  358.1MiB [          ] /savsrc
  228.9MiB [          ] /help
  108.1MiB [          ] /savbin
  101.2MiB [          ] /dm
   40.7MiB [          ] /download
 
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