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select contents between two delimiters (not working if newline in encountered)

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Top Forums Shell Programming and Scripting select contents between two delimiters (not working if newline in encountered)
# 1  
Old 11-02-2009
select contents between two delimiters (not working if newline in encountered)
Hi,

I am facing difficulties in selecting the contents between two delimiters when there is a new line occurs..

Eg:
Code:
>more sample.txt
abcd -- this is the first line %
efgh-- this is the 
second line and not 
able to print %
ijkl -- this is the 3rd line %


when i search for abcd and use the below command , i am able to print the desired contents between '--' and '%'.
But the same i am not able to print in the case of 'efgh' . Its only printing the 1st line of that word found.

pls tell me what correction to be included in this code.. or suggest me the code for this .
Code:
grep -w efgh sample.txt | awk -F"-" '{print $2}' | awk -F"||" '{print $1}'



Required output : this is the
second line and not
able to print

thanks in advance.
:-)Smilie
Last edited by Balaji PK; 11-02-2009 at 05:46 AM.. Reason: code tags, please...
# 2  
Old 11-02-2009
code

Code:
 nawk  '1' ORS="  "  file.txt | nawk '{print $4}' FS="--|%"

the above code will print :-

"this is the second line and not able to print" in one line.

BR
# 3  
Old 11-02-2009
try:
Code:
#  sed -n '/efgh/,/%/{s/efgh-- //;s/%//;p;}' sample.txt
this is the
second line and not
able to print

HTH
Last edited by Tytalus; 11-02-2009 at 05:58 AM.. Reason: forgot to remove the %
# 4  
Old 11-02-2009
This is fine.. but i want it generalised. I mean i should be able to give input text to it..

---------- Post updated at 05:10 AM ---------- Previous update was at 05:08 AM ----------

Code:
#sed -n '/efgh/,/%/{s/efgh-- //;s/%//;p;}' sample.txt

This gives the desired output for that 'efgh'
But does not give correct output for 'abcd'..
pls suggest

Code:
sed -n '/abcd/,/%/{s/efgh-- //;s/%//;p;}' sample.txt
abcd -- this is the first line
this is the
second line and not
able to print
[KRYPTON]/appltgb/test/repc/balaji >



---------- Post updated at 05:23 AM ---------- Previous update was at 05:10 AM ----------

can u pls suggest a generalised code for the problem stated above.
Last edited by pludi; 11-02-2009 at 06:16 AM.. Reason: code tags, please...
# 5  
Old 11-02-2009
code

Code:
nawk  '1' ORS="  "  input_file | nawk '{print $2,$4,$6}' OFS="\n"  FS="--|%" > output_file

Code:
more input_file:-

abcd -- this is the first line %
efgh-- this is the 
second line and not 
able to print %
ijkl -- this is the 3rd line %

more output_file:-

this is the first line
this is the  second line and not  able to print
this is the 3rd line

# 6  
Old 11-02-2009
well this is good. But when i change the input file ,,i mean if i insert two more lines..it will not work..pls suggest a code that will help me even if i change the input file. the objecive is to give a input file , a word to search in it. once the word found then print the contents corresponding to the word from '--' to '%' and stop.
Am i clear . ?
# 7  
Old 11-02-2009
Why don't you try something for yourself with all the the solutions given to you?

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