Insert data based on pattern

Shell Programming and Scripting
1

if it is finding some data based on pattern 'test' then insert else if has no data based on the pattern 'test' then exit successfully

  
cat file | grep test > file2
2

Any attempts (which I can't see in your above) from your side? Did you consider searching these forums for this very common question?

3

I tried below script but getting error .'else' is not expected'

 
#!/bin/ksh
grep test file
if [ $? -eq 0 ]
   `cat file | grep test > file2`
else
   echo " Exit sucessfully"
fi
4

That doesn't insert anything. I don't get the feeling you were searching too intensively for a solution. And, your specification is less than sparse. Howsoever, try - given you want to insert file2 -

sed '/test/r file2' file
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