Insert text into text using korn shell script

[sambam]

Hi everybody,
I have a file witch i want to edit. I want to insert new line just before a constante . Here is the content of the file :
------------------
tttt
tttt

::
ffff
fffff
---------------------

Here is the result i want using script shell ksh

------------------
tttt
tttt

new line test test
::
ffff
fffff
---------------------

Thanks for help

 

[columb]

Try

awk '/::/ {print "Text to be inserted"} {print}' /path/to/file

Tested on RedHat ES4

On the internet no one knows you're a dog

Columb Healy

 

[sambam]

Thanks, cool it work.
But i have a question, can i save my modifications in the same file without re-direction?

 

[sambam]

I have another question please, if i want to insert 2 line or plus? how can i do it?

result :
------------------
tttt
tttt

new line1 test test
new line2 test test
new line3 test test
::
ffff
fffff
---------------------

 

[columb]

I believe that you can do the modification in place using 'ed' but I don't know how to do it. As for the multiple line bit, something along the lines of

awk '/::/ {printf "line one\nline two\nline three\n"} {print}' /path/to/file

On the internet no one knows you're a dog

Columb Healy

 

[Kipnep70]

Perl does in-file editing but I don't know much about it... here is something to start you off with though.

perl -i-p -e "s/search_str/replacement_str/g" file