grep for a search string

raga · #1 (**permalink**) 03-12-2008

Hi,

I want to grep one file for a search string and get the next 10 lines after the search string.
for eg,in file tnsnames.ora,i have 100 entries.i want to search for one string and get the entry for that db.

please help how to acheive this using awk or sed?

Thanks.

fpmurphy · #2 (**permalink**) 03-12-2008

grep -A 10 "search string" file

raga · #3 (**permalink**) 03-12-2008

hi,
grep -A is not working for HP unix.
$ grep -A 10 "ARMP" tnsnames.ora
grep: illegal option -- A

please let me know is there any other option?
Thanks.

sanjaypraj · #4 (**permalink**) 03-12-2008

Will a shell script do for you? I don't know if it can be done using some command.

Tytalus · #5 (**permalink**) 03-12-2008

probably an easier way to do this but, this works....

Code:

#  sed -ne '/string/{
n
p
n
p
n
p
n
p
n
p
n
p
n
p
n
p
n
p
n
p
}
' infile

radoulov · #6 (**permalink**) 03-12-2008

Quote:

Originally Posted by raga

[...]
I want to grep one file for a search string and get the next 10 lines after the search string.
[...]

Code:

awk '/pattern/{c=11}c&&c--' file

raga · #7 (**permalink**) 03-12-2008

HI,
awk '/pattern/{c=11}c&&c--' file
this actually returned me all the 11 lines from the occurance of the pattern in the file.
But i didnt understand how it is working?can you please explain me.

Thank you.

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