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extasia.org/code/duchk/ : duchk examples

duchk examples

Show disk usage of files greater than 10240 KB (10 MB) in size for the entire root filesystem. Note that only the root filesystem will be processed. duchk does not cross filesystems.[1]

$ duchk -rs 10240 /
duchk: smallest size displayed will be 10240 kbyte(s)
duchk: /boot: active mountpoint
duchk: /proc: active mountpoint
    405076  /usr
            178656  /usr/lib
                     66108  /usr/lib/locale
                             29600  /usr/lib/locale/locale-archive
                     38504  /usr/lib/perl5
                             37988  /usr/lib/perl5/5.8.0
                                     22472  /usr/lib/perl5/5.8.0/i386-linux-thread-multi
                                             12112  /usr/lib/perl5/5.8.0/i386-linux-thread-multi/auto
                     20716  /usr/lib/python2.2
            175868  /usr/share
                     40952  /usr/share/locale
                     40040  /usr/share/doc
                     28808  /usr/share/comps
                             28804  /usr/share/comps/i386
                                     18644  /usr/share/comps/i386/hdlist2
                     15900  /usr/share/man
             26020  /usr/bin/
             15192  /usr/sbin
     73172  /lib
             56052  /lib/modules
                     28552  /lib/modules/2.4.20-8
                             28216  /lib/modules/2.4.20-8/kernel
                                     22952  /lib/modules/2.4.20-8/kernel/drivers
                     27496  /lib/modules/2.4.20-18.9
                             27144  /lib/modules/2.4.20-18.9/kernel
                                     22128  /lib/modules/2.4.20-18.9/kernel/drivers
     58224  /home
             25420  /home/alban
                     18200  /home/alban/downloads/
                             13024  /home/alban/downloads/kernel-2.4.20-18.9.i386.rpm
     15472  /var
             12772  /var/lib
                     11176  /var/lib/rpm
     10768  /sbin

Show disk usage of files in the root directory only.

$ duchk /
duchk: smallest size displayed will be 1 kbyte(s)
duchk: /boot: active mountpoint
duchk: /proc: active mountpoint
    405076  /usr
     73172  /lib
     58224  /home
     15472  /var
     10768  /sbin
      4880  /etc
      4096  /bin/
      2708  /tmp/
       420  /dev
        80  /root
        16  /lost+found
        12  /mnt
         4  /misc
         4  /initrd
         4  /opt

Show a user's disk usage in their downloads directory. Show files ≥ 1024 KB (1 MB).

$ duchk -rs 1024 ~alban/downloads
duchk: smallest size displayed will be 1024 kbyte(s)
     99792  /home/alban/downloads/matrix.reloaded.trailer.mov
     71972  /home/alban/downloads/OOo_1.0.3.1_LinuxIntel_install.tar.gz
     66652  /home/alban/downloads/gcc-3.2-sol8-sparc-local.gz
     57808  /home/alban/downloads/xfree86-4.2.0
             15868  /home/alban/downloads/xfree86-4.2.0/Xfnts.tgz
             11968  /home/alban/downloads/xfree86-4.2.0/Xf100.tgz
              6756  /home/alban/downloads/xfree86-4.2.0/Xmod.tgz
              5808  /home/alban/downloads/xfree86-4.2.0/Xps.tgz
              4832  /home/alban/downloads/xfree86-4.2.0/Xbin.tgz
              3432  /home/alban/downloads/xfree86-4.2.0/Xprog.tgz
              2228  /home/alban/downloads/xfree86-4.2.0/Xfscl.tgz
              1560  /home/alban/downloads/xfree86-4.2.0/Xdoc.tgz
              1208  /home/alban/downloads/xfree86-4.2.0/Xhtml.tgz
              1176  /home/alban/downloads/xfree86-4.2.0/Xnest.tgz
     26812  /home/alban/downloads/linux-2.4.20.tar.bz2
     25376  /home/alban/downloads/mjd-conf-judo.mov
     15300  /home/alban/downloads/binutils-2.11.2-sol8-sparc-local.gz
     15052  /home/alban/downloads/FinMac2k3aUpdate.sea.hqx
     12968  /home/alban/downloads/mjd-conf-judo.mp3
     12024  /home/alban/downloads/libgcc-3.2-sol8-sparc-local.gz
     10784  /home/alban/downloads/perl-5.8.0.tgz
      9932  /home/alban/downloads/gtk+-1.2.10-sol8-sparc-local.gz
      9044  /home/alban/downloads/postgresql-7.2.3.tar.gz
      7652  /home/alban/downloads/fw_xscreensaver-3.31.tardist
      6420  /home/alban/downloads/ms
              2852  /home/alban/downloads/ms/twdocs.from.tw
                      1136  /home/alban/downloads/ms/twdocs.from.tw/Tripwire Servers.pdf
      5352  /home/alban/downloads/mailman-2.1.tgz
      4604  /home/alban/downloads/patch-2.4.19.bz2
      4208  /home/alban/downloads/Niacin__Time_Crunch__Invisible_King.mp3
      3812  /home/alban/downloads/xine-lib-1-beta11.tar.gz
      3360  /home/alban/downloads/MPlayer-0.90.tar.bz2
      3204  /home/alban/downloads/mplayer-0.90pre8-fr1.i386.rpm
      2932  /home/alban/downloads/openpbs-2.3pl2-1.i386.rpm
      2804  /home/alban/downloads/tar-1.13.19-sol8-sparc-local
      2736  /home/alban/downloads/openssl-0.9.6g-sol8-sparc-local.gz
      2716  /home/alban/downloads/openssl-0.9.7a.tar.gz
      2716  /home/alban/downloads/postgresql-server-7.3.3-1PGDG.i386.rpm
      2408  /home/alban/downloads/xine-ui-0.9.20.tar.gz
      2360  /home/alban/downloads/postgresql-programmer-7.2-US.pdf
      2324  /home/alban/downloads/adobe.printer.driver-8.8-for.macintosh.US.sea.hqx
      2272  /home/alban/downloads/vim-6.0-sol8-sparc-local.gz
      2272  /home/alban/downloads/ncurses-5.2-sol8-sparc-local.gz
      2188  /home/alban/downloads/openssl-engine-0.9.6d.tar.gz
      2120  /home/alban/downloads/openssl-0.9.6d.tar.gz
      2104  /home/alban/downloads/openssl-engine-0.9.6b.tar.gz
      1984  /home/alban/downloads/ntp-4.1.1a.tar.gz
      1868  /home/alban/downloads/postgresql-reference-7.2-US.pdf
      1796  /home/alban/downloads/fileutils-4.1-sol8-sparc-local.gz
      1724  /home/alban/downloads/postgresql-7.2.rpm
      1632  /home/alban/downloads/postgresql-7.3.3-1PGDG.i386.rpm
      1624  /home/alban/downloads/bash-2.05-sol8-sparc-local.gz
      1488  /home/alban/downloads/readline-4.2-sol8-sparc-local.gz
      1412  /home/alban/downloads/cbest.registration.bulletin.pdf
      1408  /home/alban/downloads/win4lin
              1176  /home/alban/downloads/win4lin/netraverse_installer.tgz
      1380  /home/alban/downloads/textutils-2.0-sol8-sparc-local.gz
      1284  /home/alban/downloads/OpenPBS_2_3_16.tar.gz
      1272  /home/alban/downloads/samtrans.system.map.gif
      1216  /home/alban/downloads/gnupg-1.2.1-4.i386.rpm
      1124  /home/alban/downloads/postgresql-admin-7.2-US.pdf
      1112  /home/alban/downloads/postgresql-user-7.2-A4.pdf
      1108  /home/alban/downloads/postgresql-docs-7.3.3-1PGDG.i386.rpm
      1104  /home/alban/downloads/openssl-0.9.7a-5.i386.rpm
      1072  /home/alban/downloads/sendmail-8.12.8-5.90.i386.rpm
      1024  /home/alban/downloads/cis.solaris.tar.Z

[1] If you really want a duchk which crosses filesystem boundaries, please let me know, and I'll include filesystem crossing as an option. I have not included it because the reason duchk was written in the first place (in 1995 as a /bin/sh program) was to give users (and sysadmins :-) a tool to quickly spot high disk usage areas within a filesystem, so folks could efficiently[2] reduce their usage when that filesystem became full or near full.

[2] It's much more efficient to delete larger files in order to free up disk space than it is to delete great numbers of smaller files. duchk quickly points out where the largest disk usage is.