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GREP -p: first TWO lines

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Operating Systems AIX GREP -p: first TWO lines
# 8  
Old 11-07-2013
sed 's/BadBack/GoodBack/g' Smilie
# 9  
Old 11-20-2013
My paragraphs are separated by blank lines. My apologies for not making that clear. I am sorry. The name of my file is "CodeSnippets", so should my code look like this?:

Code:
awk '/Flash/ {
   for (i=1;i<=NF;i++) {
      if ($i ~ /Flash/) {
         if (i>1) {
            printf $(i-1) OFS
         }
         print $i;
         break
      }
   }
}' FS="\n" OFS="\n" RS="" ORS="\n\n" CodeSnippets

---------- Post updated at 10:40 AM ---------- Previous update was at 10:40 AM ----------

Quote:
Originally Posted by CarloM
sed 's/BadBack/GoodBack/g' Smilie
If only it had been that simple. Smilie

---------- Post updated at 10:48 AM ---------- Previous update was at 10:40 AM ----------

This returned the first two lines of all of the paragraphs, instead of just the ones I was looking for.

Quote:
Originally Posted by Corona688
Since awk can separate on paragraphs by setting RS to "", how about this:
Code:
awk '$1 ~ R { print $1; print $2 }' FS="\n" RS="" R="mysearchstring" inputfile

# 10  
Old 11-20-2013
Quote:
Originally Posted by Mordaris
My paragraphs are separated by blank lines. My apologies for not making that clear. I am sorry. The name of my file is "CodeSnippets", so should my code look like this?:

Code:
awk '/Flash/ {
   for (i=1;i<=NF;i++) {
      if ($i ~ /Flash/) {
         if (i>1) {
            printf $(i-1) OFS
         }
         print $i;
         break
      }
   }
}' FS="\n" OFS="\n" RS="" ORS="\n\n" CodeSnippets

Suppose that CodeSnippets contained:
Code:
Some text, that could contain anything
Flash 1
Flash 2
Flash 3

2nd paragraph with key
word not seen until
the fourth line
Flash 4

Flash on line 1 and line 4
other text on subsequent lines
Do we get what we want
Flash again
after 2nd flash

Reason not to use input %s %d
as 1st arg to printf Flash

With this input, the code above produces something like:
Code:
Some text, that could contain anything
Flash 1

the fourth line
Flash 4

Flash on line 1 and line 4

awk: not enough args in printf(Reason not to use input %s %d
)
 input record number 4, file CodeSnippets
 source line number 5

Assuming that the output you want from the above sample input is:
Code:
Some text, that could contain anything
Flash 1

2nd paragraph with key
word not seen until

Flash on line 1 and line 4
other text on subsequent lines

Reason not to use input %s %d
as 1st arg to printf Flash

you might want to try something like:
Code:
awk '
BEGIN { FS = "\n"
        RS = ""
}
/Flash/ {
        printf("%s%s\n%s\n", first++ ? "\n" : "", $1, $2)
}' CodeSnippets
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