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commandlinefu.com is the place to record those command-line gems that you return to again and again.

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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Psst. Open beta.

Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:

  • » The open beta is running a copy of the database that will not carry over to the final version. Don't post anything you don't mind losing.
  • » If you wish to use your user account, you will probably need to reset your password.
Your feedback is appreciated via the form on the beta page. Thanks! -Jon & CLFU Team

Archive every file in /var/logs

Terminal - Archive every file in /var/logs
find /var/logs -name * | xargs tar -jcpf logs_`date +%Y-%m-%e`.tar.bz2
2009-06-02 19:48:47
Functions: find tar xargs
Archive every file in /var/logs


There are 2 alternatives - vote for the best!

Terminal - Alternatives

Know a better way?

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What others think

This doesn't work because the shell expands the asterisk. You need to quote it. Another problem is that the tar file will contain the absolute path names of the log files, which is usually undesirable.

Also, for regular usage, it is not a good idea to archive "live" log files that are currently growing. It's better to rotate them and then archive the rotated files. In other words, the archiving of log files should be part of the script that performs the rotation (a nightly cron job or whatever).

On a side note, please use $() instead of backticks for command substitution. Technically both work the same, but backticks have a bunch of disadvantages: They can easily be confused with single quotes or apostrophes, and quoting becomes difficult and error-prone, especially if you need to nest multiple levels of command substitution.

Comment by inof 386 weeks ago

And, most distros can rotate & compress logfiles automatically anyways using the logrotate package (at least in debian/ubuntu). Logrotate usually runs as a cron job every hour/day/week/month/etc. See 'man logrotate' and /etc/logrotate.conf for more...

Comment by bwoodacre 386 weeks ago

Your point of view

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