04-19-2008
Retreive content between specific lines ina file
Hi
I have a text file which has two sets of lines repeating for "n" number of times.Some data is printed between the two lines.I want to retrieve all the data thats there in between those two set of lines.I have the string value of those two set of lines.
To be much more clearer
line1line1line1line1line1line1line1line1
datadatadatadatadatadatadatadat
datadatadatadatadatadatadatadata
line2line2line2line2line2line2line2line2
*
*
*
line1line1line1line1line1line1line1line1
data1data1data1data1data1data1
data1data1data1data1data1data1
line2line2line2line2line2line2line2line2
.
.
.
.this repeats for n number of times.
Pls help
Cheers
Vijay
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GREP(1) General Commands Manual GREP(1)
NAME
grep - search a file for a pattern
SYNOPSIS
grep [ option ... ] pattern [ file ... ]
DESCRIPTION
Grep searches the input files (standard input default) for lines (with newlines excluded) that match the pattern, a regular expression as
defined in regexp(6). Normally, each line matching the pattern is `selected', and each selected line is copied to the standard output.
The options are
-c Print only a count of matching lines.
-h Do not print file name tags (headers) with output lines.
-i Ignore alphabetic case distinctions. The implementation folds into lower case all letters in the pattern and input before interpre-
tation. Matched lines are printed in their original form.
-l (ell) Print the names of files with selected lines; don't print the lines.
-L Print the names of files with no selected lines; the converse of -l.
-n Mark each printed line with its line number counted in its file.
-s Produce no output, but return status.
-v Reverse: print lines that do not match the pattern.
Output lines are tagged by file name when there is more than one input file. (To force this tagging, include /dev/null as a file name
argument.)
Care should be taken when using the shell metacharacters $*[^|()= and newline in pattern; it is safest to enclose the entire expression in
single quotes '...'.
SOURCE
/sys/src/cmd/grep.c
SEE ALSO
ed(1), awk(1), sed(1), sam(1), regexp(6)
DIAGNOSTICS
Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.
GREP(1)