blank space

hi everyone,
i have a problem in unix script , i need to remove line that has blank , not blank line .
example: mahm,,jdggkhsd,ghskj,,fshjkl
can anyone help?

So in the event that the line matches the pattern ',[:space:]+,' you wish not to display it?

That sounds like a job for grep -v

i made grep to search about this lines , how can at the same time delete them?

try using grep -v to exclude them then pipe the output to a temp file, now replace your original file with the temp file and there you are, job done.

thanks