Very Computer

I need to be able to match *any* number of 0's that are between ||

Example

|000|00|0000000|0|

I would *hopefully* want that to be when I am done

|||||

I have used

sed -e 's/|0*|/||' filename

but that only gets every other one (i.e. sed reads up to a | for a
pattern, but for the next pattern it starts with the next character.. in
my case a 0)

Any clues?
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Quote:

>I need to be able to match *any* number of 0's that are between ||

>Example

>|000|00|0000000|0|

>I would *hopefully* want that to be when I am done

>|||||

>I have used

>sed -e 's/|0*|/||' filename

>but that only gets every other one (i.e. sed reads up to a | for a
>pattern, but for the next pattern it starts with the next character.. in
>my case a 0)

The "g" says global so it will work for all occurrences of the regular
expression.

Warren Porter
Rainy days OR Mondays Always Get Me Down.

        sed 's/|0*|/||/g
                s/|0*|//g' filename

Quick and dirty wins the race.

Quote:>> Example

>> |000|00|0000000|0|

>> I would *hopefully* want that to be when I am done

>> |||||

>> I have used

>> sed -e 's/|0*|/||' filename

>> but that only gets every other one (i.e. sed reads up to a | for a
>> pattern, but for the next pattern it starts with the next character.. in
>> my case a 0)

>> Any clues?

>Easy way -- do it twice:

>    sed 's/|0*|/||/g
>            s/|0*|//g' filename

>Quick and dirty wins the race.

Input (foo) file looks like:
 (fyi, this is just an example input file, my real input
  file is much larger with many possible combinations)

I will have more than one pattern case per line

|0|00|000|
|00.|
|.00|
|500|
|00000|0|

when I run:

sed -e 's/|0*|/||/g' -e 's/|0*|/||/g' foo

I get:

||00||
|00.|
|.00|
|500|
||0|  

What I need to get is

||||
|00.|
|.00|
|500|
|||

i.e. only where the pattern is *any* number of zeros (and only
zeros) do I want to substitute.

Sorry. My fault. "*" in a RE says "any number, including none", so
/|0*|/ matches ||. What you want is:

        sed 's/|00*|/||/g
                s/|00*|/||g' yourfile

Quote:

>I need to be able to match *any* number of 0's that are between ||

>Example

>|000|00|0000000|0|

>I would *hopefully* want that to be when I am done

>|||||

>I have used

>sed -e 's/|0*|/||' filename

>but that only gets every other one (i.e. sed reads up to a | for a
>pattern, but for the next pattern it starts with the next character.. in
>my case a 0)

>Any clues?

sed -e 's/|00*|/||/g;s/|00*|/||/g' infile

for this infile:

Quote:>|000|00|0000000|0|

Quote:>|||||

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  Die Anyway     |    v    | That no one could find fault with it.

   >I need to be able to match *any* number of 0's that are between ||
   >Example
   >|000|00|0000000|0|
   >I would *hopefully* want that to be when I am done
   >|||||
   >I have used
   >sed -e 's/|0*|/||' filename
   >but that only gets every other one (i.e. sed reads up to a | for a
   >pattern, but for the next pattern it starts with the next character.
   >. in my case a 0)
   >Any clues?
Does your input file contain anything other than | and 0?  If not you could
simply use sed 's/0*//g'

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