UNIX for Dummies Questions & Answers

Hi All,

I have a file named pattern.dat which contains pattern like
A1000090 250.00 250.00

i have one more file named test.dat in which this pattern is present.

What i should do is, in test.dat after this pattern i should append comments.

i used like this

sed "/`cat pattern.dat`/ a\
> COMMENT
> " test.dat

It is throwing error as
sed: command garbled: /A1000090 250.00 250.00 / COMMENT

please help me out to solve this probelm.

Thanks,
Sona.

Dear Sona,

The error you are getting is probably because you are using "" on place of ''.
You can try this also.....it's little ugly but I think it might solve your purpose.....

sed '/[a-zA-Z0-9]* [0-9]*\.[0-9]* [0-9]*\.[0-9]*/ a\
COMMENT
' pattern.dat > test.dat

regards
Apoorva kumar

Hi Apoorva,

I think u misunderstood my query...

I just want to search the pattern(present in pattern.dat) in test.dat and append a new line after that pattern in test.dat.

I tried with ur code..it is not working.

Thanks,
Sona.

Ok ! Let me check it!!

regards
Apoorva kumar

But the pattern should be taken from one file.It is not just any string we can use. so how can i do that?

how can i take the pattern from one file and check it in another file using sed since i need to append the comment text after that pattern.

Sona.