Shell Programming and Scripting

i have a file with contents

test123
qwwww
sdsad
asdasd
asdad
adadsw
sasfar
sfaf
a

afasf
OPERATION END

i need to grep all the contents from test123 and OPERATION END.Can somebody help me how to do it ?

$ cat file.txt
adfadsfafaf
asdfasfasdfasdfasdfasfasf
test123
qwwww
sdsad
asdasd
asdad
adadsw
sasfar
sfaf
a

afasf
OPERATION END
asdfadsfdasfadsfasdfasf
asdfasdfasfdasfasdfasdfasdfsadfasdfdasf

$ awk '/test123/,/OPERATION END/' file.txt
test123
qwwww
sdsad
asdasd
asdad
adadsw
sasfar
sfaf
a

afasf
OPERATION END

hi,


awk: record `*** [TopologyFactory...' too long
record number 145094

i was trying the above operation. The file i am using for the input is about 5 MB.

Any idea about this error

the algorithm to do this:

Code:

for each line in file
   if line have OPERATION END
        unset flag
   if line have "test123"
        set flag=1
   if flag is set
        print line

i got it rectified.

Now,

a.txt has,
awk '/$1/,/OPERATION END/' file.txt

providing $1 is not working. Is athere any way to solve this ?

You can give like

awk '/'"$1"'/,/OPERATION END/' file.txt

$ cat file.txt
adfadsfafaf
asdfasfasdfasdfasdfasfasf
test123
qwwww
sdsad
asdasd
asdad
adadsw
sasfar
sfaf
a

afasf
OPERATION END
kgfkg
sfbf
OPERATION END
asdfadsfdasfadsfasdfasf
asdfasdfasfdasfasdfasdfasdfsadfasdfdasf


$ awk '/test123/,/OPERATION END/' file.txt

This command generates all the contents from 'test123' till the last ocurance of 'OPERATION END' . Is it possible i can redefine the contents from the first occurance of 'test123' till the first occurance of "'OPERATION END' ?