擅长:python、mysql、java
<p>这将在第二次出现TO时插入一个新行</p>
<pre><code>sed 's/TO/\nTO/2' myFile.txt
</code></pre>
<p>测试:</p>
<pre><code>temp_files > cat myFile.txt
TO YOUDate : 06/12/2013 09:52:55 AMHi can u pls pick up some bread from the store. TO : Contact NameDate : 06/12/2013 10:00:10 AMI can in about 15 minutes. I'm still in a meeting.
temp_files >
temp_files > sed 's/TO/\nTO/2' myFile.txt
TO YOUDate : 06/12/2013 09:52:55 AMHi can u pls pick up some bread from the store.
TO : Contact NameDate : 06/12/2013 10:00:10 AMI can in about 15 minutes. I'm still in a meeting.
</code></pre>