Magic space on the current command line

2010-06-25 1 min read Bash Fedora Linux

# For how to set up magic space for Bash see:
# – http://www.ukuug.org/events/linux2003/papers/bash_tips/#slide15
# – http://codesnippets.joyent.com/posts/show/1690

man bash 2>/dev/null | less -p ’magic-space’

man bash 2>/dev/null | less -p ’Event Designators’

man bash 2>/dev/null | less -p ’\!#’ # ”The entire <a class="zem_slink" title="Command-line interface" rel="wikipedia" href="http://en.wikipedia.org/wiki/Command-line_interface">command line typed so far.”

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let a cow tell you your fortune

2010-06-03 1 min read Bash Linux

Here\’s something that I saw on commandlinefu yesterday. That sent me thinking about some command to have the cow file picked randomly 🙂 So, here\’s the original command from the commandlinefu:

    <td>
      <div class="text codecolorer">
        $ fortune | <a class="zem_slink freebase/en/cowsay" title="Cowsay" rel="homepage" href="http://www.nog.net/%7Etony/warez/cowsay.shtml">cowsay</a> -f tux
      </div>
    </td>
  </tr>
</table>

Let Tux bring the fortune cookie

Delete all files in a folder that don't match a certain file extension

2010-04-30 1 min read Bash Fedora Linux

$ rm !(.foo|.bar|*.baz)

Deletes all files in a folder that are NOT *.foo, *.bar or *.baz files. Edit the pattern inside the brackets as you like.

<a href="http://www.commandlinefu.com/commands/view/5351/delete-all-files-in-a-folder-that-dont-match-a-certain-file-extension">View this command to comment, vote or add to favourites
<a href="http://feeds2.feedburner.com/commands/by/hutch">View all commands by <a href="http://feeds2.feedburner.com/commands/by/hutch">hutch

by David Winterbottom (<a href="http://codeinthehole.com">codeinthehole.com)

Upgrade to Fedora 13 from your existing version using yum.

2010-04-21 1 min read Fedora Uncategorized

Well. this time it seems to be very simple :

yum –releasever=13 upgrade

update 22/April/2010:
The key file will not be there so there are two options for you in this case:

Install the following rpms from the downloaded rpms with ”yum –nogpg localinstall”
a) fedora-release
b) fedora-release-notes
Run the whole upgrade with –nogpg option.

Issue observed after the upgrade:
The new kernel was not added in the grub menu and I had to manually add the below entry in the <a class="zem_slink freebase/en/gnu_grub" title="GNU GRUB" rel="homepage" href="http://www.gnu.org/software/grub/">menu.lst file:

Advanced Sed Substitution Examples

2010-04-11 1 min read Bash Linux

This article is part of the on-going Unix Sed Tips and Tricks series. In our previous sed articles we learned — sed printing, sed deletion, sed substitute , sed file write, and sed multiple commands. In this article, let us review some interesting workarounds with the “s” substitute command in sed with several practical examples. I. […]

Read More: <a href="http://www.thegeekstuff.com/2009/10/unix-sed-tutorial-advanced-sed-substitution-examples/">Unix Sed Tutorial: Advanced Sed Substitution Examples

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let a cow tell you your fortune

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Advanced Sed Substitution Examples