Thursday, May 15, 2008

Custom df (diskfree) column output in Solaris using nawk

Let's say you want to combine some features of "df -h" with "df -n" to show filesystem type and some other custom modifications to the output. This is where awk/nakw/gawk/whatever come in handy:

% df -g | nawk '{if (NR % 5 == 1) printf "%-22s", $1 ; if (NR % 5 == 4) printf "%-10s", "fstype " $1 "\n"; if (NR % 5 == 2) printf "%-30s",$1/2/1024/1024 " GB"; if (NR % 5 == 2) printf "%-30s", $4/2/1024/1024 " GB free "}'


/ 33.6627 GB 18.4351 GB free fstype ufs
/devices 0 GB 0 GB free fstype devfs
/system/contract 0 GB 0 GB free fstype ctfs
/proc 0 GB 0 GB free fstype proc
/etc/mnttab 0 GB 0 GB free fstype mntfs
/etc/svc/volatile 7.88214 GB 7.8813 GB free fstype tmpfs
/system/object 0 GB 0 GB free fstype objfs
/lib/libc.so.1 33.6627 GB 18.4351 GB free fstype ufs
/dev/fd 0 GB 0 GB free fstype fd
/tmp 7.88142 GB 7.8813 GB free fstype tmpfs
/var/run 7.88134 GB 7.8813 GB free fstype tmpfs
/export/home 74.4858 GB 1.87458 GB free fstype ufs
/storage 108.639 GB 66.9259 GB free fstype nfs

You can also add a comma (,) to the separators and output > csv (you can open the comma separated values table in Excel or OpenOffice or any other Spreadsheet application) :-).
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3 comments:

  1. Anonymous2:52 AM

    Heh.

    That was one of my frustrations with Solaris - doesn't support simple usability options for common utilities. Ie, no -h for du and df, no --color for ls. Minor, sure. But handy.

    On my Linux systems, I like -T for df, which shows the filesystem type. I'd paste output here, but blogger doesn't allow pre tags.

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  2. cmihai3:45 PM

    Solaris 10 supports du / df -h and so on, not an issue. You could use GNU ls (gls) for color support but you'd lose extemded ACL and other atributes.

    Sure, some UNIX systems don't support du -h, but I doubt that's an issue awk can't fix.

    Want MB output in df on AIX for example:


    # df -k | awk '{ printf "%-12s", $2/1024 " MB "; print $0 }';

    39552 MB /dev/lv05 40501248 9267396 78% 452 1% /u04

    You just muck about with AWK to manipulate the data output. A few well placed scripts and aliases in your .shellrc will solve the problems :-). Just keep a OS independent .zshrc in a Mercurial repo :P.

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  3. Anonymous8:32 PM

    Hello
    Thanks, It makes me more easy
    to do the volume management
    I'm starting with IBM AIX
    and some detaails are some difficulto to undestand.

    Reggardts

    ReplyDelete