Question

I try to extract a particular pattern from a file. the file content:

--------some other command in here----------
<tr>
<td>someWords</td>
<td>anotherWords</td>
</tr>
--------some other command in here-----------
the <tr>...</tr> patter occur again

I try to extract the tr pattern from the file

in the shell script I write:

read INPUT

grep '<tr>\n<td>[A-Za-z0-9,<,>,/]</td>\n<td>[A-Za-z0-9,<,>,/]</td>\n</tr>

However, this command doesnt work. Any idea? thx

Answer 1

 sed -n '/<tr>/,/<\/tr>/p' file

see example:

kent$  cat a                      
--------some other command in here----------
<tr>
<td>someWords</td>
<td>anotherWords</td>
</tr>
--------some other command in here-----------
the 
<tr>
<td>someOtherWords</td>
<td>anotherWords2</td>
</tr>

kent$  sed -n '/<tr>/,/<\/tr>/p' a
<tr>
<td>someWords</td>
<td>anotherWords</td>
</tr>
<tr>
<td>someOtherWords</td>
<td>anotherWords2</td>
</tr>