Hi,
If there exist multiple pattern in a file, how can I find the last record matching the pattern through perl.
The below script searches for the pattern everywhere in an input file.
#! /usr/bin/perl -s -wnl
BEGIN {
$pattern or
warn"Usage: $0 -pattern='RE' \n" and
exit 255;... (5 Replies)
Dear All
I have a file like this
112534554
446538656
444695656
225696966
226569744
228787874
113536566
443533535
222564552
115464656
225445345
225533234
I want to cut the file into different parts where the first two columns are '11' . The first two columns will be either... (3 Replies)
Hi
I have a file (say 'file1')and I want to search for a first occurence of pattern (say 'ERROR') and print ten lines in the file below pattern. I have to code it in PERL and I am using Solaris 5.9.
I appreciate any help with code
Thanks
Ammu (6 Replies)
Hi,
I am new to ksh scripting and I have a problem.
I have a file in which I have to search for a particular pattern say 'a' then from that line I need to search for another pattern say 'b' in the previous lines and thne print the file from pattern 'b' till the end of file.
For eg:
... (2 Replies)
i have a file as below
sample.pl
parameter1
argument1
argument2
parameter2
I want out as below
argument1
argument2
that is , i want to print all the lines between parameter1 & parameter 2.
i tried with the following
if($mystring =~ m/parameter1(.*?)parameter2/) (2 Replies)
Hello,
I'm new to this forum. I've been doing a lot of sed work lately and have found many useful tips on this forum. I've hit a roadblock in a project, though, and could really use some help.
I have a text file with many lines like the following, i.e., some lines begin with a single word... (3 Replies)
Hi all,
on Solaris 10, I'd like to print a range of lines starting at pattern but also including the very first line before pattern.
the following doesn't print the range starting at pattern and going down to the end of file: cat <my file> | sed -n -e '/<pattern>{x;p;}/'
I need to include the... (1 Reply)
Hi,
I have script like below:
#!/usr/local/bin/perl
use strict;
use warnings;
while (<DATA>) {
( my ($s_id) = /^\d+\|(\d+?)\|/ ) ;
if ( $s_id == 1 ){
s/^(.*\|)*.*ABC\.pi=(+|+)*.*ABC\.id=(\d+|+).*$/$1$2|$3/s;
print "$1$2|$3\n"; (2 Replies)
hello everyone,
im new here, and also programming with awk, sed and grep commands on linux.
In my text i have many lines with this config:
1 1 4 3 1 1 2 5
2 2 1 1 1 3 1 2
1 3 1 1 1 2 2 2
5 2 4 1
3 2 1 1 4 1 2 1
1 1 3 2 1 1 5 4
1 3 1 1... (3 Replies)
Hello,
I have below format log file,
Comparing csv_converted_files/2201/9747.1012H67126.5077292103609547345.csv and csv_converted_files/22019/97447.1012H67126.5077292103609547345.csv
Comparing csv_converted_files/2559/9447.1012H67126.5077292103609547345.csv and... (6 Replies)
Discussion started by: arvindshukla81
6 Replies
LEARN ABOUT PLAN9
grep
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)