Check for null

Shell Programming and Scripting
1

Hi Champs!!!

im a newbie in unix, need ur expert help for my problem...

I need to search if there are any "NULL" entries in the string

String without Null
Str1: 203652|1000003653|tellt|RUPV|4649|1|07/28/2011 01:56:12

String with Null (RUPV is removed)

Str2: 203652|1000003653|tellt||4649|1|07/28/2011 01:56:12

I need to return the line if there are any NULL fields in between the PIPE "|" (which is used as delimiter)

Regards,
Guru

2 
grep '||' YOURFILE
3

Thanks for the quick reply Yazu,

but, I'm retrieving this line from a file and then i need to check on the prompt.

---------- Post updated at 01:54 PM ---------- Previous update was at 01:33 PM ----------

I still not got the solution !!! :frowning:

4

I wonder if this is what you need

cat YOURFILE | grep "||"
5

I grep a file and retrieve the line

Str2: 203652|1000003653|tellt||4649|1|07/28/2011 01:56:12

now i need to "|" the current command and check for null... please help!!!

6

Please post the command to retrieve the above line.