commandlinefu.com is the place to record those command-line gems that you return to again and again.
Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.
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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.
Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):
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If something fracks up your terminal, just type in 'reset' and everything should be good again.
The really awesome bash completion in debian seems to be an extra package now, which has to be installed. After sourcing /etc/bash_completion it completes almost everything (package names in apt... etc) :-)
To make this permanent, put something like this in your .bashrc:
if [ -f /etc/bash_completion]; then
If the connection works you should see a "hello" on host A. If not: check your cabeling etc :-)
Quick shortcut if you know the hostname and want to save yourself one step for looking up the IP address separately.
Force the user you want to watch doing things into doing his things in a screen session. Then simply attach yourself to that session with the command shown above.
Works only if you are on the same machine, of course
kpartx can be found inside of the multipath-tools package
-a adds the mappings and -d deletes them
with 'mii-tool -w eth0' you can watch the interface for changes of the link status
After the command is done, open the html file in a browser