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Dev pro tips

Documentation of fixes for programming/computing annoyances.

Refresh zsh's autocorrect list

Sometimes zsh is a little over-zealous in its autocorrections. This can happen when a new command becomes available and zsh hasn't updated its list of correct commands yet.

You can force it to update with "hash -rf".

(via StackOverflow)
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Mounting a OS X (host) folder in a Ubuntu VM using VirtualBox

Create a shared folder as you normally do using the VirtualBox machine settings UI.

Then, run the following command:

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How to fix: OS X makes you authenticate to move a file, even though you own it

Even if you chmod 777 your file, OS X may have decided that you don't have permission to move/modify it.

For me, removing the ACLs fixed this:

Source: http://osxadmin.blogspot.com/2008/01/chmod-acl-removal.html

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Manually download printer drivers for OS X Lion

The automatic discovery/driver download for network printers doesn't work in Lion. You may have to download the driver package manually from http://support.apple.com/kb/HT3669.

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RVM, Ruby 1.8.7, OS X Lion

From James Fryman:

The default compiler on Lion doesn't play nice with Ruby 1.8.7. To get around this, run the following...

rvm uninstall 1.8.7 && CC=/usr/bin/gcc-4.2 rvm install 1.8.7

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Compiling tarsnap on OS X Lion

Lion uses LLVM instead of GCC as the default compiler. Apparently there is a bug in LLVM that causes the tarsnap build to hang, so if you're having problems, the following worked for me:

These mailing list posts were helpful: http://comments.gmane.org/gmane.comp.sysutils.backup.tarsnap.user/342

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Fixing "perl: warning: Setting locale failed." on Ubuntu (prgmr vps)

I recently started getting an error about the locale settings on both my prgmr instances. I tried a bunch of different solutions found with Google searches before I found one that worked:

Source: http://forum.slicehost.com/comments.php?DiscussionID=5065

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Length of long local macro

local long_macro "something really long..."
local macro_length : length local long_macro
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Omit variable in regression

char varname[omit] value
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Every 5 minutes cronjob

*/5        *        *        *        *        ruby /Scripts/gmail/checkmail.rb
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by Max Masnick

www.maxmasnick.com

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