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Need assistance with sed

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# 1  
Old 04-09-2011
Question Need assistance with sed
Hi All,

I need your assistance, I would like to replace all lines beginning with the word "begin" with the below text:

Code:
       Device          |            IPMB0-A              |             IPMB0-B             
Board      Address      |Sent      SentErr      %Errr      |Sent      SentErr      %Errr

How this is achievable using sed command line or sed script?
In general, How can I replace a complete line with a certain text?

The below command will only replace the word "begin" but how to replace the complete line:
Code:
#sed s/^begin/text/ test.log

Thanks in advance.
# 2  
Old 04-09-2011
Something like:
Code:
sed s/^begin.*/text/

# 3  
Old 04-09-2011
Quote:
Originally Posted by scottn
Something like:
Code:
sed s/^begin.*/text/

Thanks for your quick reply but how about the first example i have highlighted? this is not achievable via command line, it needs sed script to do it. any ideas?
# 4  
Old 04-10-2011
Code:
# cat infile
begin this is
this is ...................
that is.................
begin this is

Code:
# cat text
       Device          |            IPMB0-A              |             IPMB0-B
Board      Address      |Sent      SentErr      %Errr      |Sent      SentErr      %Errr

Code:
# sed "s/^begin.*/$(sed -e :a -e '$! s/$/\\n/;' -e 'N;s/\n//g' -e 'ta' text)/" infile
      Device          |            IPMB0-A              |             IPMB0-B
Board      Address      |Sent      SentErr      %Errr      |Sent      SentErr      %Errr
this is ...................
that is.................
      Device          |            IPMB0-A              |             IPMB0-B
Board      Address      |Sent      SentErr      %Errr      |Sent      SentErr      %Errr

# 5  
Old 04-11-2011
Quote:
Originally Posted by ygemici
Code:
# cat infile
begin this is
this is ...................
that is.................
begin this is

Code:
# cat text
       Device          |            IPMB0-A              |             IPMB0-B
Board      Address      |Sent      SentErr      %Errr      |Sent      SentErr      %Errr

Code:
# sed "s/^begin.*/$(sed -e :a -e '$! s/$/\\n/;' -e 'N;s/\n//g' -e 'ta' text)/" infile
      Device          |            IPMB0-A              |             IPMB0-B
Board      Address      |Sent      SentErr      %Errr      |Sent      SentErr      %Errr
this is ...................
that is.................
      Device          |            IPMB0-A              |             IPMB0-B
Board      Address      |Sent      SentErr      %Errr      |Sent      SentErr      %Errr

Thanks a lot! it worked perfectly Smilie can you explain the command in details please?

BR
# 6  
Old 04-12-2011
Quote:
Originally Posted by Dendany83
Thanks a lot! it worked perfectly Smilie can you explain the command in details please?

BR
Code:
sed -e :a -e '$! s/$/\\n/;' -e 'N;s/\n//g' -e 'ta' text

this command's result is
Code:
       Device          |            IPMB0-A              |             IPMB0-B\nBoard      Address      |Sent      SentErr      %Errr      |Sent      SentErr      %Errr

so we add to newline chr as text '\n' char because sed is expect '\n' char for write (in buffer's) 2.line to as our stdoutput newline. that's all Smilie

regards
ygemici
# 7  
Old 04-12-2011
Quote:
Originally Posted by ygemici
Code:
sed -e :a -e '$! s/$/\\n/;' -e 'N;s/\n//g' -e 'ta' text

this command's result is
Code:
       Device          |            IPMB0-A              |             IPMB0-B\nBoard      Address      |Sent      SentErr      %Errr      |Sent      SentErr      %Errr

so we add to newline chr as text '\n' char because sed is expect '\n' char for write (in buffer's) 2.line to as our stdoutput newline. that's all Smilie

regards
ygemici
Sorry but this command is giving me an error:

Code:
#sed -e :a -e '$! s/$/\\n/;' -e 'N;s/\n//g' -e 'ta' header

Code:
Unrecognized command: $! s/$/\\n/;
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