Making chkconfig's output readable

RedHat has this little utility called chkconfig that helps you manage which services get run at which runlevel on startup. It's pretty handy. Its output format is godawful, however:

andy@mungo[~]$ sudo /sbin/chkconfig --list
lm_sensors      0:off   1:off   2:on    3:on    4:on    5:on    6:off
iptables        0:off   1:off   2:on    3:on    4:on    5:on    6:off
network         0:off   1:off   2:on    3:on    4:on    5:on    6:off
ntpd            0:off   1:off   2:off   3:on    4:off   5:on    6:off
snmpd           0:off   1:off   2:off   3:off   4:off   5:off   6:off
rhnsd           0:off   1:off   2:off   3:on    4:on    5:off   6:off
rpcgssd         0:off   1:off   2:off   3:on    4:on    5:on    6:off
cups-config-daemon      0:off   1:off   2:off   3:on    4:on    5:off 
+  6:off
syslog          0:off   1:off   2:on    3:on    4:on    5:on    6:off
named           0:off   1:off   2:off   3:off   4:off   5:on    6:off
psacct          0:off   1:off   2:off   3:off   4:off   5:off   6:off
apmd            0:off   1:off   2:on    3:on    4:on    5:off   6:off
cpuspeed        0:off   1:on    2:on    3:on    4:on    5:on    6:off
acpid           0:off   1:off   2:off   3:on    4:on    5:on    6:off
nifd            0:off   1:off   2:off   3:on    4:on    5:on    6:off

messagebus      0:off   1:off   2:off   3:on    4:on    5:on    6:off
saslauthd       0:off   1:off   2:off   3:off   4:off   5:off   6:off
NetworkManager  0:off   1:off   2:off   3:off   4:off   5:off   6:off
gpm             0:off   1:off   2:on    3:on    4:on    5:on    6:off
mdmpd           0:off   1:off   2:off   3:off   4:off   5:off   6:off
crond           0:off   1:off   2:on    3:on    4:on    5:on    6:off
dovecot         0:off   1:off   2:on    3:on    4:on    5:on    6:off
nfs             0:off   1:off   2:off   3:off   4:off   5:off   6:off
rpcsvcgssd      0:off   1:off   2:off   3:on    4:on    5:on    6:off
nscd            0:off   1:off   2:off   3:off   4:off   5:off   6:off
irda            0:off   1:off   2:off   3:off   4:off   5:off   6:off
mdmonitor       0:off   1:off   2:on    3:on    4:on    5:on    6:off
yum             0:off   1:off   2:off   3:off   4:off   5:off   6:off
spamassassin    0:off   1:off   2:off   3:off   4:off   5:on    6:off
snmptrapd       0:off   1:off   2:off   3:off   4:off   5:off   6:off
irqbalance      0:off   1:off   2:off   3:on    4:on    5:on    6:off
microcode_ctl   0:off   1:off   2:off   3:off   4:off   5:off   6:off
nfslock         0:off   1:off   2:off   3:on    4:on    5:on    6:off
bluetooth       0:off   1:off   2:off   3:off   4:off   5:off   6:off
haldaemon       0:off   1:off   2:off   3:on    4:on    5:on    6:off
readahead_early 0:off   1:off   2:off   3:off   4:off   5:on    6:off
vncserver       0:off   1:off   2:off   3:off   4:off   5:off   6:off
smartd          0:off   1:off   2:on    3:on    4:on    5:on    6:off
sshd            0:off   1:off   2:on    3:on    4:on    5:on    6:off
winbind         0:off   1:off   2:off   3:off   4:off   5:off   6:off
atd             0:off   1:off   2:off   3:on    4:on    5:on    6:off
diskdump        0:off   1:off   2:off   3:off   4:off   5:off   6:off
portmap         0:off   1:off   2:off   3:on    4:on    5:on    6:off
netfs           0:off   1:off   2:off   3:on    4:on    5:on    6:off
smb             0:off   1:off   2:on    3:on    4:on    5:on    6:off
pcmcia          0:off   1:off   2:on    3:on    4:on    5:on    6:off
lisa            0:off   1:off   2:off   3:off   4:off   5:off   6:off
kudzu           0:off   1:off   2:off   3:on    4:on    5:on    6:off
readahead       0:off   1:off   2:off   3:off   4:off   5:on    6:off
xfs             0:off   1:off   2:on    3:on    4:on    5:on    6:off
mDNSResponder   0:off   1:off   2:off   3:on    4:on    5:on    6:off
rpcidmapd       0:off   1:off   2:off   3:on    4:on    5:on    6:off
postfix         0:off   1:off   2:on    3:on    4:on    5:on    6:off
mailman         0:off   1:off   2:on    3:on    4:on    5:on    6:off
ypbind          0:off   1:off   2:off   3:off   4:off   5:off   6:off
netdump         0:off   1:off   2:off   3:off   4:off   5:off   6:off
anacron         0:off   1:off   2:on    3:on    4:on    5:on    6:off
cups            0:off   1:off   2:on    3:on    4:on    5:on    6:off
netplugd        0:off   1:off   2:off   3:off   4:off   5:off   6:off
autofs          0:off   1:off   2:off   3:on    4:on    5:on    6:off
[download]

Quick, what are you running at runlevel 2? How can I easily pick out information? I can't scan the columns very easily. Besides, if you have a table and your values are boolean, don't make them be "Yes" and "No" or "On" and "Off", but a value and empty space.

So here's how I cleaned it up:

andy@mungo[~]$ /sbin/chkconfig --list | ./cclist
  2345  lm_sensors
  2345  iptables
  2345  network
   3 5  ntpd
        snmpd
   34   rhnsd
   345  rpcgssd
   34   cups-config-daemon
  2345  syslog
     5  named
        psacct
  234   apmd
 12345  cpuspeed
   345  acpid
   345  nifd
   345  messagebus
        saslauthd
        NetworkManager
  2345  gpm
        mdmpd
  2345  crond
  2345  dovecot
        nfs
   345  rpcsvcgssd
        nscd
        irda
  2345  mdmonitor
        yum
     5  spamassassin
        snmptrapd
   345  irqbalance
        microcode_ctl
   345  nfslock
        bluetooth
   345  haldaemon
     5  readahead_early
        vncserver
  2345  smartd
  2345  sshd
        winbind
   345  atd
        diskdump
   345  portmap
   345  netfs
  2345  smb
  2345  pcmcia
        lisa
   345  kudzu
     5  readahead
  2345  xfs
   345  mDNSResponder
   345  rpcidmapd
  2345  postfix
  2345  mailman
        ypbind
        netdump
  2345  anacron
  2345  cups
        netplugd
   345  autofs
[download]

So much better. Oh my, look, named is only running if I'm at runlevel 5. I wouldn't have noticed that from the first version.

Simple little code follows. Golf it if you must, but I'm not really interested in how I could make it better unless I'm doing something significantly stupid.

andy@mungo[~]$ more cclist
while (<>) {
    if ( /^(\S+)(\s+\d:o(n|ff)){7}/ ) {
        chomp;
        my @cols = split;
        my $service = shift @cols;
        for ( @cols ) {
            my ( $level, $status ) = split /:/;
            print $status eq "on" ? $level : " ";
        }
        print "\t$service\n";
    } else {
        print;
    }
}
[download]

xoxo,
Andy

2004-12-07 Janitored by Arunbear - added readmore tags, as per Monastery guidelines

Comment on Making chkconfig's output readable Select or Download Code

Replies are listed 'Best First'.
Re: Making chkconfig's output readable by fireartist (Chaplain) on Dec 07, 2004 at 10:59 UTC
++ I'd probably also pipe it through `sort` first. `/sbin/chkconfig --list \| sort \| ./cclist`	[reply] [d/l] [select]
Re: Making chkconfig's output readable by wolfger (Deacon) on Dec 09, 2004 at 19:23 UTC
Nicely done. I would add the option to have listings by service (as you did) or by runlevel (runlevel 1 has these processes, runlevel 2 has...) -- Linux, sci-fi, and Nat Torkington, all at Penguicon 3.0	[reply]
Re: Making chkconfig's output readable by TVSET (Chaplain) on Dec 16, 2004 at 10:38 UTC
I don't see what is wrong with chkconfig's output. If you are interested in one specific service you can do either "`chkconfig --list someservice`" or "`chkconfig --list \| grep someservice`". If you want to know which services run in runlevel 2, you can do "`chkconfig --list \| grep 2:on`". Leonid Mamtchenkov aka TVSET	[reply] [d/l] [select]
Re^2: Making chkconfig's output readable by petdance (Parson) on Dec 18, 2004 at 05:57 UTC
I want to look at all of them, at a glance. The "on" and "off" strings are unnecessarily obscuring. The best way to say "no" is with whitespace. It makes you think, rather than make the answers incredibly obvious. Do you honestly not see the difference between the default output and what I put together? xoxo, Andy	[reply]
Re^3: Making chkconfig's output readable by perlzilla (Initiate) on Dec 31, 2004 at 07:23 UTC
I really liked your idea. I couldn't help but golf a little. I only output what's on. `/sbin/chkconfig --list \| perl -nle '$s=(split)[0];s/(\d):on/$a{$s}.=$1/ge;s/(\w+):\s+(on)/$a{"xinetd -> $1"}=$2/e; END{print "$_: $a{$_}" for sort keys %a}'` Score yours: 186 swings; 147 swings if I turn all your vars into single characters. mine: 116 swings. Just having fun!	[reply] [d/l]
Re: Making chkconfig's output readable by dominix (Deacon) on Dec 09, 2004 at 06:39 UTC
++ however, I'll recomend to un-localise output for those who got locale set. `LANG=C chkconfig ... or export LANG=C sudo chkconfig ...` [download] -- dominix	[reply] [d/l]
Re^2: Making chkconfig's output readable by Aristotle (Chancellor) on Dec 21, 2004 at 02:58 UTC
Or simply `LANG=C sudo chkconfig`. Makeshifts last the longest.	[reply] [d/l]


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