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<pre>$ find . -name '*.h' -print0 | xargs -0 git checkout-index -f --</pre>
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<p>which will force all existing <code>*.h</code> files to be replaced with their
cached copies. If an empty command line implied "all", then this would
force-refresh everything in the index, which was not the point.  But
since <em>git checkout-index</em> accepts --stdin it would be faster to use:</p>
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<pre>$ 