awk Replace Multiple patterns within a list_file with One in target_file
I'm facing a problem
1) I got a list_file intended to be used for inlace replacement like this
2) I got a target file in witch I want to replace thoses paterns
I want it to become
Actually I am using awk to try to achieve this with this command :
Sadly awk doesn't seems to understand the pipe « | » character as a OR indicator ... I have also tried to achieve this with sed but this option goes very slowly aven if it works
Hi there,
We have been given a bit of coursework using awk on html pages. Without giving too much away and risking the wrath of the plagerism checks, I can say we need to deal with certain html elements.
There may be several of these elements on one line. My question is, if there are more... (1 Reply)
This should be somewhat simple, but I need some help with this one.
I have a bunch of files with tags on the end like so...
Filename {tag1}.ext
Filename2 {tag1} {tag2}.ext
I want to hold in a variable just the filename with all the " {tag}" removed. The tag can be anything so I'm looking... (4 Replies)
Hi,
I am using sub to remove blank spaces and one pattern(=>) from the input string. It works fine when I am using two sub functions for the same. However it is giving error while I am trying to remove both spaces and pattern using one single sub function.
Working:
$ echo " OK => " |awk... (2 Replies)
Hi Bigshots,
I have a pattern file with two columns. I have another data file. If column 1 in the pattern file appears as the 4th column in the data file, I need to replace it (4th column of data file) with column 2 of the pattern file. If the pattern is found in any other column, it should not... (6 Replies)
Hi Team
I have the following text in one of the file
j1738-abc-system_id(in.value1)-2838 G566-deF-system_id(in.value2)-7489
I want to remove system_id(...) combination completely The output should look like this
j1738-abc-in.value1-2838 G566-deF-in.value2-7489
Any help is appreciated... (4 Replies)
Hi forum,
Can you please help me understand how to look for and replace the below pattern (containing line breaks) and return a new result?
Rules: Must match the 3 line pattern and return a 1 line result.
I have found solutions with sed, but it seems that sed installed in my system is... (5 Replies)
I need to check if 2 values exists in the file and if they are equal print 0.
output.txt:
------------
1 2 3 4 5 6
Inputs:
a=1
b=2
My pattern matching code works but I am trying to set a counter if both the pattern matches which does not work.If the count > 0,then I want to... (3 Replies)
I am able to grep multiple patterns which stored in a files. However, how could we replace the whole line with either the pattern or new string?
For example:
pattern_file: *Info in the () is not part of the pattern file. They are the intended name to replace the whole line after the pattern... (5 Replies)
Discussion started by: wxboo
5 Replies
LEARN ABOUT MOJAVE
english5.18
English(3pm) Perl Programmers Reference Guide English(3pm)NAME
English - use nice English (or awk) names for ugly punctuation variables
SYNOPSIS
use English;
use English qw( -no_match_vars ) ; # Avoids regex performance penalty
# in perl 5.16 and earlier
...
if ($ERRNO =~ /denied/) { ... }
DESCRIPTION
This module provides aliases for the built-in variables whose names no one seems to like to read. Variables with side-effects which get
triggered just by accessing them (like $0) will still be affected.
For those variables that have an awk version, both long and short English alternatives are provided. For example, the $/ variable can be
referred to either $RS or $INPUT_RECORD_SEPARATOR if you are using the English module.
See perlvar for a complete list of these.
PERFORMANCE
NOTE: This was fixed in perl 5.20. Mentioning these three variables no longer makes a speed difference. This section still applies if
your code is to run on perl 5.18 or earlier.
This module can provoke sizeable inefficiencies for regular expressions, due to unfortunate implementation details. If performance matters
in your application and you don't need $PREMATCH, $MATCH, or $POSTMATCH, try doing
use English qw( -no_match_vars ) ;
. It is especially important to do this in modules to avoid penalizing all applications which use them.
perl v5.18.2 2014-01-06 English(3pm)