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Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
» http://twitter.com/commandlinefu
» http://twitter.com/commandlinefu3
» http://twitter.com/commandlinefu10
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This command uses the debugger to attach to a running process, and reassign a filehandle to a file.
The two commands executed in gdb are
p close(1) which closes STDOUT
and
p creat("/tmp/filename",0600)
which creates a file and opens it for output. Since file handles are assigned
sequentially, this command opens the file in place of STDOUT and once the process continues, new output to STDOUT will instead be written to our capture file.