Hello People,
Need some assistance/guidance.
OUTLINE:
Two files (File1 and File2)
File1 has some ids such as
009463_3922_1827
897654_8764_5432
File2 has things along the lines of:
Query= 009463_3922_1827 length=252
(252 letters)
More stufff here
... (5 Replies)
Hi All,
Please find the sample file below:
NAME ID NUMBER
-------------------------------------------------------------------------------------------------- ---------
abcdefgheija;lksdf ... (13 Replies)
I have in a file
domain.com. 1909 IN A 1.22.33.44
domain.com. 1909 IN A 22.33.44.55
ns1.domain.com. 1699 IN A 33.44.55.66
ns2.domain.com. 1806 IN A 77.77.66.66
I need to "grep" or "awk" out the lines starting with domain.com. as follows.
domain.com. 1909 IN A 1.22.33.44
domain.com.... (3 Replies)
i have a file as below
sample.pl
parameter1
argument1
argument2
parameter2
I want out as below
argument1
argument2
that is , i want to print all the lines between parameter1 & parameter 2.
i tried with the following
if($mystring =~ m/parameter1(.*?)parameter2/) (2 Replies)
I am using Solaris, I want to print
3 lines before pattern match
pattern
5 lines after pattern match
Pattern is abcd to be searched in a.txt. Looking for the solution in sed/awk/perl. Thanks ..
Input File a.txt:
=================
1
2
3
abcd
4
5
6
7
8 (7 Replies)
I need to print the lines that do not match a pattern. I tried using grep -v and sed -n '/pattern/!p', but both of them are not working as I am passing the pattern as variable and it can be null some times.
Example
........ abcd......
.........abcd......
.........abcd......... (4 Replies)
Data:
Pattern Data Data Data
Data Data Data
Data Data Data
...
With awk, how do I print the pattern matching line, then the subsequent lines following the pattern matching line. Varying number of lines following the pattern matching line. (9 Replies)
Hello Experts , require help . See below output:
File inputs
------------------------------------------
Server Host = mike
id rl images allocated last updated density
vimages expiration last read <------- STATUS ------->... (4 Replies)
Discussion started by: tigerhills
4 Replies
LEARN ABOUT DEBIAN
regexp-assemble
REGEXP-ASSEMBLE(1p) User Contributed Perl Documentation REGEXP-ASSEMBLE(1p)NAME
regexp-assemble - Assemble a list of regular expressions from a file
SYNOPSIS
regexp-assemble -abcdfinprsStTuUvw file [...]
DESCRIPTION
Assemble a list of regular expression either from standard input or a file, using the Regexp::Assemble module.
OPTIONS -a look Ahead. Insert "(?=...)" zero-width lookahead assertions in the pattern, where necessary.
-b Blank. Ignore blank lines.
-c Comment. Basic comment filtering. Strip off perl/shell comments ("s*#.*$/").
-d Debug. Turns on debugging output. See Regexp::Assemble for suitable values.
-i Indent. Print the regular expression using and indent of n to display nesting. A.k.a pretty-printing. Implies -p.
-n No newline. Do not print a newline after the pattern. Useful when interpolating the output into a templating system or similar.
-p Print. Print the pattern. This is the default, however, it is required when the -t switch is enabled (because if you want to test
patterns ordinarily you don't care what the the assembled pattern looks like).
-r Reduce. The default behaviour is to reduce the assembled pattern. Enabling this switch causes the reduction algorithm to be switched
off. This can help you determine how much reduction is performed.
regexp-assemble pattern.file | wc
# versus
regexp-assemble -r pattern.file | wc
-s Statistics. Print some statistics about the assembled pattern. The output is sent to STDERR (in order to allow the generated pattern
to be redirected elsewhere).
-S Statistics only. Like -s, except that the pattern itself is not output. Useful with -d 8 to see the time taken.
-t Test. Test the assembled expression against the contents of a file. Each line is read from the file and is matched against the
pattern. Lines that fail to match are printed. In other words, no output is good output. In this mode of operation, error status is 1
in the case of a failure, 0 if all lines matched.
-T Time. Print statistics on the time taken to reduce and assemble the pattern. (This is merely a lazy person's synonym for "-d 8").
-u Unique. Carp if duplicate patterns are found.
-U Unroll. Transform "a+" et al into "aa*" (which may allow additional reductions).
-v Version. Print the version of the regexp-assemble script.
-w Word/Whole. When testing the contents of a file with "-t", bracket the expression with "^" and "$" in order to match the whole word or
line from the file.
DIAGNOSTICS
Will print out a summary of the problem if an added pattern causes the assembly to fail.
SEE ALSO
Regexp::Assemble
AUTHOR
Copyright (C) 2004-2008 David Landgren. All rights reserved.
LICENSE
This script is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.14.2 2012-06-30 REGEXP-ASSEMBLE(1p)