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SQL is not a natural place for order and numbering. You can add order with 'order by' but numbering is a bit server-specific. But there are ways. Suppose your text file is in a one column table...

Have a look at this. Using union merges the queries together and sorts them. Logically this is not what you asked for though. Your example was getting a row on either side of the target value. ...

Let's put it this way: The Kernel hides a lot of "complexities" which would have made programming a computer a lot more complicated.

Back before operating systems (and kernels) were there people...

You could try shc Shell Compiler (http://www.datsi.fi.upm.es/~frosal/)

$
$ start=$(date -u -d "22-Feb-2010")
$
$ echo $start
Mon Feb 22 00:00:00 UTC 2010
$


tyler_durden

Be welcome, you should take Useless Use of Cat Award (http://partmaps.org/era/unix/award.html) first.

They are there, but doing echo $var instead of echo "$var" has the side-effect of flattening out all whitespace.

What are you attempting by putting an entire file in a variable? There's probably...

# cat file
note:
this a note
a simple note
a very very simple note
# var=$(<file)
# echo "$var"
note:
this a note
a simple note
a very very simple note

The first sentence removes all the tags so the content remains.
$ echo "<tag1>content</tag1>" | sed 's/<[^>]*>//g'
content

To do the same with [] you could do this:
$ echo...

Alternatives ;)
# echo "<tag1>content</tag1>" | sed -e 's/<[^<]*>//g'
content


# echo "<tag1>content</tag1>" | sed -e 's/.*>\(.*\)<.*/\1/'
content


# echo "<tag1>content</tag1>" | sed -e...

I don't think that will do what you describe.

sed -e 's/pattern/replacement/g'

is a search and replace pattern. In your example, there's no replace, and nothing will be returned.

You...