Hello Together, I have following Problem:

A Java Program generates me some output that I pipe to a logfile. Now I want to add a Pattern (e.g. 'important') in Front of every Pattern in de Logfile that matches a specified regex.
But neither with sed then with awk I got to a working solution.

Here some ouput from the logfile:

04-Nov-2010 15:20:29 INFO DXReceive.main File "/myDirectory" umbenannt auf /myDirectory 04-Nov-2010 15:20:29 INFO DXReceive.main ... done DXReceive dxreceive.sh /myDirectory /myDirectory erfolgreich

And this should be the result:

important 04-Nov-2010 15:20:29 INFO DXReceive.main File "/myDirectory" umbenannt auf /myDirectory important 04-Nov-2010 15:20:29 INFO DXReceive.main ... done DXReceive dxreceive.sh /myDirectory /myDirectory erfolgreich

A working regex to get to the dates is [0-9][0-9]-[A-Z][a-z][a-z]-[0-9][0-9][0-9][0-9]

I hope you unterstand my Problem and I thank you for your help.

greetings
danifunny

(sorry for my bad english, isn't my native language)

Hi,

When does this pattern need to be added? The given regexp is true for every date, thus you will always add the pattern (assuming that all the logged lines start with a date). In that case you do not need to use the regexp.

Could you be more specific?

Hi

that's just the knicking point, the dates aren't always at the beginning of the line.
What I want is to say a simple find and replace. I want to find a regex and insert a pattern in front of de regex.

e.g.:
the regex should find dates and insert the pattern in front of the regex. for this example, the pattern is 'important'

Logfile before skript starts:
lorem ipsum 05-Dec-2009 thanks for help 09-Feb-2008 I am thankful for 06-Mar-2010 this forum

Logfile after skript finished:
lorem ipsum important05-Dec-2009 thanks for help important09-Feb-2008 I am thankful for important06-Mar-2010 this forum



I hope this made it clearer for you

thanks

Hi,

Ok, clear.

sed 's/\([0-9][0-9]-[A-Z][a-z][a-z]-[0-9][0-9][0-9][0-9]\)/IMPORTANT \1/g' infile

This uses back-referencing. Everything between \( and \) in the search part can be represented by \1 (and \2 \3 if you use more of them) in the replace part.

Hope this helps.

1 members found this post helpful.

Tested and works!
Thank you a lot, and again learned something very useful .

You're welcome