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ln overwrites newly created files
From: |
Eric Blake |
Subject: |
ln overwrites newly created files |
Date: |
Tue, 21 Aug 2007 14:53:49 -0600 |
User-agent: |
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070728 Thunderbird/2.0.0.6 Mnenhy/0.7.5.666 |
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Contrast the following:
$ mkdir a b c
$ echo 1 > a/f
$ echo 2 > b/f
$ cp -v a/f b/f c --remove-destination
`a/f' -> `c/f'
cp: will not overwrite just-created `c/f' with `b/f'
with the similar:
$ rm c/f
$ ln -vf a/f b/f c
`c/f' => `a/f'
`c/f' => `b/f'
$ cat c/f
2
Oops - we overwrote the just-created c/f with a link to b/f. Similarly
with ln -s, where we lose the just-created link to a/f.
- --
Don't work too hard, make some time for fun as well!
Eric Blake address@hidden
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- ln overwrites newly created files,
Eric Blake <=