[clug] Command of the Hour

Michael James Michael.James at csiro.au
Tue Sep 16 02:14:56 GMT 2008

On Tue, 16 Sep 2008 04:25:35 am Ian wrote:
> random, obscure and useful commands


# What mis-begotten spawn of the devil has bound my http port?
>  lsof -i:http

# The service is running but outside clients can't see it.
# What ports do I need to open in the firewall?
> lsof -i -u squeezecenter

# And I couldn't have come up with the last example without "man"
> man lsof
Lots of stuff about how to run lsof

# Which brings up my least favourite command, ever seen this?
"The  full  documentation  for ls is maintained as a Texinfo manual.
  If the info and ls programs are properly installed at your site,
 the  command

              info coreutils 'ls invocation'

 should give you access to the complete manual."

# So try it ...  8^(
> info ls
You will be plunged into an emaxian hell
 from which there are only 2 escapes:
   - A PhD in computing science
   - Closing the shell window

# Further study will reveal that all this pain
#   is a primitive* attempt to implement hyperlinks.
# The web provides a useful implementation so try:


# And I couldn't finish without mentioning the Command of the Century
> rsync

# And then there's the Command of the Next Century
> refloat  <path 1> <path2>

Which finds similar branches below the paths given,
 and is an antidote to one to many rsync commands.

my $.02

Michael James                         michael.james at csiro.au
System Administrator                    voice:  02 6246 5040
CSIRO Bioinformatics Facility             fax:  02 6246 5166

No matter how much you pay for software,
 you always get less than you hoped.
Unless you pay nothing, then you get more.

* For values of "primitive" < "the big bang"

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