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copied!<p>For posterity, let's post the solution from within VI. You can remove the <kbd>Ctrl</kbd>-<kbd>M</kbd> at the end of every line like this:</p> <pre><code>:%s/^V^M$// </code></pre> <p>Note that this is what you <em>type</em>, wnere <code>^V</code> means <kbd>Ctrl</kbd>-<kbd>V</kbd> and <code>^M</code> means <kbd>Ctrl</kbd>-<kbd>M</kbd>. The idea here is that <code>^V</code> will "escape" the following ^M, so that you can match it in the substitution regex.</p> <p>And the <code>%</code> expression means "do this on every line".</p> <p>Note that this may or may not work in vim, depending on your settings.</p> <p>But your question asks how to do this in vi, in which you can't easily make a change to multiple files. If you're open to using other tools, please indicate so in your question.</p> <p>You can use sed on a single file or stream:</p> <pre><code>$ printf 'one\r\ntwo\r\n' > /tmp/test.txt $ od -c < /tmp/test.txt 0000000 o n e \r \n t w o \r \n 0000012 $ sed -i'' -e 's/^M$//' /tmp/test.txt $ od -c < /tmp/test.txt 0000000 o n e \n t w o \n 0000010 $ </code></pre> <p>In this case, in /bin/sh in FreeBSD, I escaped the <code>^M</code> by ... you guessed it ... using <code>^V</code>.</p> <p>When using sed's <code>-i</code> option, you can specify multiple files and they will all be modified in place, perhaps eliminating the need to wrap this in a script. If you want to put this into a script anyway, I recommend you try to do so, and then ask for help if it doesn't work. That's the StackOverflow Way. :-)</p> <p>Or just use Jonathan's for loop example. You don't need temp files.</p> <p><strong>UPDATE</strong></p> <p>If your <code>sed</code> does not have a <code>-i</code> option, then you can still do this pretty easily in a for loop:</p> <pre><code>[ghoti@pc ~]$ od -c /tmp/test1.txt 0000000 o n e \r \n t w o \r \n 0000012 [ghoti@pc ~]$ for f in /tmp/test*.txt; do sed -e 's/^M$//' "$f" > /tmp/temp.$$ && mv -v /tmp/temp.$$ "$f"; done /tmp/temp.26687 -> /tmp/test1.txt /tmp/temp.26687 -> /tmp/test2.txt [ghoti@pc ~]$ od -c /tmp/test1.txt 0000000 o n e \n t w o \n 0000010 </code></pre>

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